4.2 Target Name [Target_Name]

The name is used to identify a target; all target names within a proposal must be unique. The target name can be selected from the STScI list of standard targets (see Table 4.1; explanations of "Level 1" and "Level 2" are given below), or a name can be defined by the GO. The use of standard names is encouraged whenever possible.

The following conventions should be followed in naming targets:

• The length of a target name can be anywhere from 2 to 31 characters.
• No blanks are permitted in target names. A hyphen should replace blanks that would normally be used to separate fields (e.g. IO-TORUS, COMET-BRADFIELD-1979X).
• Only letters and numerals are allowed in target names; punctuation (other than hyphens and + or -) is not permitted.
• Construct target names so they make sense for your observing program. For example, if your program consisted of consecutive observations of three surface features on Mars, then three appropriate target names might be: MARS-FEATURE1, MARS-FEATURE2, and MARS-FEATURE3.

  Do not use just a standard name for a target when a specific portion of a body is being observed. For example, do not use "Saturn" as the target name for a feature or specific location that is defined relative to the position of Saturn as a standard body because this is confusing for the software that computes the positions of moving targets.

Table 4.1: Solar System Standard Targets 

Level 1	Level 2
Sun
Mercury
Venus
Earth	Moon	Hubble
Mars	Phobos	Deimos
Jupiter	Io	Europa	Ganymede
	Callisto	Amalthea	Himalia
	Elara	Pasiphae	Sinope
	Lysithea	Carme	Ananke
	Leda	Thebe	Adrastea
	Metis	Callirrhoe	Themisto
	Taygete	Chaldene	Harpalyke
	Kalyke	Iocaste	Erinome
	Isonoe	Praxidike	Autonoe
	Thyone	Hermippe	Aitne
	Eurydome	Euanthe	Euporie
	Orthosie	Sponde	Kale
	Megaclite	Pasithee	Hegemone
	Mneme	Aoede	Thelxinoe
	Arche	Kallichore	Helike
	Carpo	Eukelade	Cyllene
Saturn	Mimas	Enceladus	Tethys
	Dione	Rhea	Titan
	Hyperion	Iapetus	Phoebe
	Janus	Epimetheus	Helene
	Telesto	Calypso	Atlas
	Prometheus	Pandora	Pan
	Paaliaq	Tarvos	Ijiraq
	Suttungr	Kiviuq	Mundilfari
	Albiorix	Skathi	Erriapo
	Siarnaq	Thrymr	Ymir
	Narvi	Methone	Pallene
	Polydeuces	Daphnis
Uranus	Ariel	Umbriel	Titania
	Oberon	Miranda	Cordelia
	Ophelia	Bianca	Cressida
	Desdemona	Juliet	Portia
	Rosalind	Belinda	Puck
	Caliban	Sycorax	Prospero
	Setebos	Stephano	Trinculo
	Francisco	Margaret	Ferdinand
	Perdita	Mab	Cupid
Neptune	Triton	Nereid	Naiad
	Thalassa	Despina	Galatea
	Larissa	Proteus	Halimede
	Psamathe	Sao	Laomedeia
	Neso
Pluto	Charon	Nix	Hydra

If you are uncertain whether or not your target can be referenced by name, contact your Program Coordinator for guidance.