Last Update: 2024-05-20 12:45 UTC

Follow-up Ranking for present lunation starting on 2024-04-23

Overall Follow-up Ranking

Rank	Obs. code	Observatory name (link to Delta-PL assignment)	Cum. PL value
1	I52	Steward Observatory, Mt. Lemmon Station	413.983
2	G96	Mt. Lemmon Survey	326.750
3	F52	Pan-STARRS 2, Haleakala	162.838
4	V06	Catalina Sky Survey-Kuiper	123.875
5	F51	Pan-STARRS 1, Haleakala	89.053
6	291	LPL/Spacewatch II	65.229
7	474	Mount John Observatory, Lake Tekapo	62.856
8	033	Karl Schwarzschild Observatory, Tautenburg	52.787
9	Z84	Calar Alto-Schmidt	46.980
10	T12	University of Hawaii 88-inch telescope, Maunakea	31.780
11	J95	Great Shefford	26.203
12	691	Steward Observatory, Kitt Peak-Spacewatch	23.602
13	807	Cerro Tololo Observatory, La Serena	21.676
14	T14	Canada-France-Hawaii Telescope, Maunakea	15.639
15	695	Kitt Peak	14.763
16	I93	St Pardon de Conques	14.733
17	O46	Daocheng Glacier Observatory	14.000
18	G37	Lowell Discovery Telescope	12.504
19	932	John J. McCarthy Obs., New Milford	12.289
20	L34	Galhassin Robotic Telescope, Isnello	11.623

Big Surveys Follow-up Ranking

Rank	Obs. code	Observatory name (link to Delta-PL assignment)	Cum. PL value
1	G96	Mt. Lemmon Survey	326.750
2	F52	Pan-STARRS 2, Haleakala	162.838
3	F51	Pan-STARRS 1, Haleakala	89.053
4	V00	Kitt Peak-Bok	11.269
5	M22	ATLAS South Africa, Sutherland	10.445
6	703	Catalina Sky Survey	3.794
7	T05	ATLAS-HKO, Haleakala	2.303
8	W94	MAP, San Pedro de Atacama	1.381
9	K88	GINOP-KHK, Piszkesteto	1.216
10	W68	ATLAS Chile, Rio Hurtado	0.232
11	C51	WISE	0.195
12	T08	ATLAS-MLO, Mauna Loa	0.012

All others Follow-up Ranking

Rank	Obs. code	Observatory name (link to Delta-PL assignment)	Cum. PL value
1	I52	Steward Observatory, Mt. Lemmon Station	413.983
2	V06	Catalina Sky Survey-Kuiper	123.875
3	291	LPL/Spacewatch II	65.229
4	474	Mount John Observatory, Lake Tekapo	62.856
5	033	Karl Schwarzschild Observatory, Tautenburg	52.787
6	Z84	Calar Alto-Schmidt	46.980
7	T12	University of Hawaii 88-inch telescope, Maunakea	31.780
8	J95	Great Shefford	26.203
9	691	Steward Observatory, Kitt Peak-Spacewatch	23.602
10	807	Cerro Tololo Observatory, La Serena	21.676
11	T14	Canada-France-Hawaii Telescope, Maunakea	15.639
12	695	Kitt Peak	14.763
13	I93	St Pardon de Conques	14.733
14	O46	Daocheng Glacier Observatory	14.000
15	G37	Lowell Discovery Telescope	12.504
16	932	John J. McCarthy Obs., New Milford	12.289
17	L34	Galhassin Robotic Telescope, Isnello	11.623
18	H01	Magdalena Ridge Observatory, Socorro	10.986
19	C40	Kuban State University Astrophysical Observatory	10.601
20	U52	Shasta Valley Observatory, Grenada	10.085

Last year lunations Follow-up Ranking:

Follow-up Ranking for lunation starting on 2023-06-04

Follow-up Ranking for lunation starting on 2023-07-03

Follow-up Ranking for lunation starting on 2023-08-01

Follow-up Ranking for lunation starting on 2023-08-31

Follow-up Ranking for lunation starting on 2023-09-29

Follow-up Ranking for lunation starting on 2023-10-28

Follow-up Ranking for lunation starting on 2023-11-27

Follow-up Ranking for lunation starting on 2023-12-27

Follow-up Ranking for lunation starting on 2024-01-25

Follow-up Ranking for lunation starting on 2024-02-24

Follow-up Ranking for lunation starting on 2024-03-25

Follow-up Ranking for lunation starting on 2024-04-23

Computation method

The purpose of the present ranking is to provide a metrics to measure the performance and the contribution to the follow-up activity of several professional and amateurs telescopes. The page shows three tables: one is including all telescopes, one is including only big surveys telescopes, and one all but not big surveys telescopes.

The ranking is computed considering the priority value algorithm used to compute the Priority List. The approach is to compute the priority value (PV1) at the time of the first observation of the new dataset, without including in the orbit determination process the new set. Then, the priority value (PV2) is computed at the same time but including in the orbit determnation process also the new set. The Delta-PL value is computed as PV1 - PV2. The major contribution on the priority value improvement is obviously given by the uncertainty parameter shrinking, while the other observational parameters, which play a role in the priority list algorithm, such as visual magnitude, solar and lunar elongations and visibility windows,and so on, are pretty much the same or vary very little.

This service has been developed for the NEOROCKS (NEO Rapid Observation, Characterization And Key Simulation) Project, which has received funding from the European's Horizon 2020 research and innovation programme under grant agreement No 870403.