E Selected Forms

The following forms are included in this appendix:

1. Scheduling Update form.
2. Assignment of Responsibility form.
3. Change of Address form.
4. Observation Specification form and instructions.

Additional copies of these as well as all other forms are available on request from the observatory.

OBSERVATION SPECIFICATION FORM INSTRUCTIONS

The information submitted on the Observation Specification Form is used for scheduling Observatory operations and for estimating the exposure times required for each object. One full-size Observation Specification Form should be returned with a regular episode proposal. For added targets and the initial requests for discretionary time, a copy of the reduced size form contained in this appendix is acceptable. Upon approval of a discretionary time program, the proposer will be asked to complete a full size form if he/she has not already done so. Full size forms are available on request from the observatory. An attempt has been made to provide an information format flexible enough to satisfy each user's observing needs, and every attempt will be made to schedule in accordance with the information given.

The IUE Project expects to be experimenting with increasingly automated scheduling routines in preparation for future episodes and IUE observational "windows" restricted by spacecraft constraints that worsen as the spacecraft ages. To ensure that your high priority objects receive greater consideration in scheduling, the importance of each target to your program should be noted in the target priority (RANK) columns of the Observation Specification Form. See the end of this section for detailed instructions on completing the form and specifying priority. Examples which show how the Observation Specification Form should be filled out for various types of objects are included.

Target coordinates are to be specified in 1950 epoch, giving right ascension to a tenth of a second of time and declination to one second of arc. Valid coordinates are necessary because the accuracy of a spacecraft maneuver depends upon the positional accuracy of both the desired target and the previously observed object. The necessity of having an accurate position is not reduced by any presumed "ease" of identifying the target. Furthermore, these coordinates are used to verify that requested (post-peer-review) additions to one program do not duplicate targets on another approved program.

When filling out the forms please note the following:

1. The list of catalog codes to be used for specifying object names has been reduced compared to some previous years' lists. In general, coding was retained for (a) objects whose designations are larger than 8 characters, and (b) HD, HR and NGC numbers, since their coordinates are verified from tape files at GSFC. For these it is necessary for the object numbers to be right-justified, with no leading zeroes.
2. "O" means the letter "oh".
   "Ø" means the number "zero".
   
3. The FORMAT given in the parameter description below refers to the standard FORTRAN format field specification under which the item will be read. Formats of the type Fn.0 can accept integer or floating point numbers. The decimal point, if omitted, is assumed to be to the right of the rightmost digit position in the field.
4. Except where noted, all entries should be right justified within the appropriate fields.
5. A new object class, 69, has been defined for Herbig-Haro objects.

PARAMETER

NAME

FORMAT

COLUMN

Sequence Number

SEQ

I3

l-3

Integer running from l to N, where N is the total number of entries.

Catalog Source

A

A1

4

The preferred catalog source is the HD.

Y

- Bright Star Catalog

l

- BD

2

- CD

3

- CPD

G

- Boss General Catalog

H

- HD catalog

N

- NGC

P

- PG numbers

K

- Parkes catalog numbers

Q

- other extragalactic sources with designations of the form HHMMDM; e.g., Burbidge catalog of quasars

S

- SAO catalog numbers

X

- X-ray sources with designations of the form HHMM±DDM; e.g., 2A, MXB, 4 U numbers.

O

- other designations as chosen by the observer; e.g., RHO CAS, AR PAV, 3Cl20 (right justified)

Object Number/Name

IDENT

A8

5-12

Eight alpha-numeric characters, right justified.

A	IDENT
Y	XXXX	XXXX is the Bright Star Catalog number
1	±XX YYYY	BD number	X = declination zone (omit minus
2	XX YYYYY	CD number	sign for CD and CPD entries)
3	XX YYYYY	CPD number	Y = star number
G	XXXXX	XXXXX is the GC number
H	XXXXXX	XXXXXX is the HD number
N	XXXX	XXXX is the NGC number
P	XXXX±YYY		XXXX is the RA portion of the designation
K	XXXX±YYY		in the form HHMM
Q	XXXX±YYY		YYY is the Dec portion of the designation
X	XXXX±YYY		in the form DDM
S	XXXXXX	XXXXXX is the SAO number
O	XXXXXXXX	XXXXXXXX is specified by the observer

PARAMETER

NAME

FORMAT

COLUMN

Coordinates (1950 epoch only)

RIGHT ASCENSION: HOURS

HR

I2

14-15

MINUTES

MIN

I2

17-18

SECONDS

SEC

I2

20-21

TENTHS OF SECONDS

SEC/10

I1

23

DECLINATION: SIGN

±

A1

25

DEGREES

DEG

I2

26-27

MINUTES

MIN

I2

29-30

SECONDS

SEC

I2

32-33

Spectral Type

SP

A2

35-36

Spectral types are used to derive exposure times.
First character-one of the letters W, O, B, A, F, G, K, M, C, R, N, S.
Any other character will be treated as an M.
Second character-one of the digits 0-9; C or N for WC, WN.
If no type is specified, B0 is assumed for exposure time estimation.

Luminosity Class

L

I1

38

A single digit from 1 to 9 given as follows. If not specified, a default value of 5 will be assumed.

CLASS	L
Ib	1
II	2
III	3
IV	4
V	5
SD	6
WD	7
Ia	8
Iab	9

Brightness Mode Indicator

E/F

A1

40

Indicates the type of information specified in the next two fields
(blank) means VIS MAG and B-V.
E means VIS MAG and E(B-V).

Visual Magnitude

VIS MAG

F6.2

42-47

For BRIGHTNESS MODE E or blank, specify visual magnitude, right justified.

PARAMETER

NAME

FORMAT

COLUMN

Color or Wavelength

B-V/E(B-V)

F6.2

49-54

If BRIGHTNESS MODE is blank, specify B-V. If omitted, the target is treated as unreddened. For BRIGHTNESS MODE E, specify E(B-V). If omitted, the target is treated as unreddened. Should be right justified.

Resolution

R

I1

56

R=1 (HIGH)
R=2 (LOW)
R=3 (BOTH)

Wavelength Range

W

I1

57

W=1 (LONG)
W=2 (SHORT)
W=3 (BOTH)

Target Priority

RANK

I3

59-61

To assist the Observatory in scheduling programs, targets should be ranked by priority, with RANK=1 being the highest. Targets of equal priority can be given equal ranking and rankings need not be sequential. Backup targets, for instance, can be given much lower ranking than the primary targets. If all targets have equal priority and no preferences exist, all targets should be assigned RANK=1. Right justify.

Day of Observation

DAY

F7.3

70-76

Day of year for the desired time of observation if the date and/or time of observation is scientifically critical beyond the normal beta-angle requirements. This may be specified with a time resolution of up to 0.001 days, and should be right justified. The year is implied by the approximate dates of the observing episode (12 months in length) beginning in June. In order to ensure that requests for specific dates and/or times are considered by the Observatory's scheduler, the Principal Investigator should communicate the program's requirements in writing to the Observatory immediately following program approval.

Object Class

OBJ CLASS

A3

78-80

Classify each target according to the codes (01 through 99) supplied on the enclosed description of Object Classification. Right justify.

Examples of Entries on the IUE Observation Specification Form

The following examples should clarify any questions regarding the application of the coding form parameters.

EXAMPLE 1 HD 30614 is to be observed at high resolution (R=1), both long and short wavelength (W=3). Visual magnitudes and B-V are specified (E/F = blank). It is a backup for high radiation shifts and has been given a low (relative) priority (RANK = 10).

EXAMPLE 2 HD 36512 is to be observed at low resolution (R=2), long wavelength (W=1). Visual magnitude and E(B-V) are specified (E/F=E). It too is given a RANK = 10.

EXAMPLE 3 C 273 is to be observed at low resolution (R=2), short wavelength (W=2). An approximate visual magnitude is given. A spectral type entry is not appropriate and so it is omitted.

EXAMPLE 4 AND 5 NGC 4472 is to be observed at low resolution (R=2) and both long and short wavelength (W=3). The short wavelength exposure, as well as those planned for target 7, are the highest priority observations to be made and are assigned RANK = 1. The long wavelength exposure is often a lower, but still important, priority (RANK = 2).

EXAMPLE 6 Jupiter is to be observed on July 29, when it is in a region which will not cause heating of the on-board computer (beta angle=47 degrees). The observer should check the position of the Moon before requesting a specific date or time.

EXAMPLE 7 The subdwarf O star BD+28 4211 is the desired target.

EXAMPLE 8 RU Peg is a variable star, an example of an "OTHER" Catalog Source.

EXAMPLE 9 PKS 2216-038 is the target. Even if the observer does not care about the exposure time (an 8-hour exposure is not expected to overexpose the spectrum of this source), he should still provide as much information as possible, for example the visual magnitude and (B-V), so that it can be included in the observatory log.

OBJECT CLASSIFICATION CODES
Classification of Objects Used in the IUE Observation Log

00	Sun		50	R, N, or S Type Star
01	Earth		51	Long-Period Variable Stars
02	Moon		52	Irregular Variables
03	Planet		53	Regular Variables
04	Planetary Satellite		54	Dwarf Novae
05	Minor Planet		55	Classical Novae
06	Comet		56	Supernovae
07	Interplanetary Medium and Sky Background		57	Symbiotic Stars
08	Great Red Spot		58	T Tauri stars
09			59	X-Ray Source
10	WC		60	Shell Star
11	WN		61	Eta Carinae
12	Main Sequence O		62	Pulsar
13	Supergiant O		63	Nova-Like
14	Oe		64	Other
15	Of		65	Misidentified Targets
16	O sub-dwarf		66	Interacting Binary Stars
17	WD O		67
18			68
19	Other Strong UV Sources		69	Herbig-Haro Objects
20	B0-B2 V-IV		70	Planetary Nebula + Central Star
21	B3-B5 V-IV		71	Planetary Nebula - Central Star
22	B6-B9.5 V-IV		72	H II Region
23	B0-B2 III-I		73	Reflection, Nebula
24	B3-85 III-I		74	Dark Cloud (Absorption Spectrum)
25	B6-B9.5 III-I		75	Supernova Remnant
26	Be		76	Ring Nebula (Shock Ionized)
27	Bp		77
28	B sub-dwarf		78
29	WDB		79
30	A0-A3 V-IV		80	Spiral Galaxy
31	A4-A9 V-IV		81	Elliptical Galaxy
32	A0-A3 III-I		82	Irregular Galaxy
33	A4-A9 III-I		83	Globular Cluster
34	Ae		84	Seyfert Galaxy
35	Am		85	Quasar
36	Ap		86	Radio Galaxy
37	WDA		87	BL Lacertae Object
38	Horizontal Branch Stars		88	Emission Line Galaxy (Non-Seyfert)
39	Composite Spectral Types		89
40	F0-F2		90	Intergalactic Medium
41	F3-F9		91
42	Fp		92
43	Late-Type Degenerates		93
44	G V-IV		94
45	G III-I		95
46	K V-IV		96
47	K III-I		97
48	M V-IV		98	Wavelength Calibration Lamp
49	M III-I		99	Nulls and Flat Fields