Last Update: 2024-04-28 12:39 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	F52	Pan-STARRS 2, Haleakala	29.581
2	I52	Steward Observatory, Mt. Lemmon Station	25.120
3	807	Cerro Tololo Observatory, La Serena	21.587
4	291	LPL/Spacewatch II	20.949
5	Z84	Calar Alto-Schmidt	7.243
6	691	Steward Observatory, Kitt Peak-Spacewatch	5.519
7	L34	Galhassin Robotic Telescope, Isnello	4.142
8	G96	Mt. Lemmon Survey	2.967
9	T05	ATLAS-HKO, Haleakala	2.124
10	F51	Pan-STARRS 1, Haleakala	1.192
11	Z80	Northolt Branch Observatory	1.062
12	Y66	Two-Meter Twin Telescope, TTT2, Teide	0.761
13	595	Farra d'Isonzo	0.470
14	M49	IAS Remote Observatory, Hakos	0.198
15	W84	Cerro Tololo-DECam	0.003

Big Surveys Follow-up Ranking

Rank	Obs. code	Observatory name (link to Delta-PL assignment)	Cum. PL value
1	F52	Pan-STARRS 2, Haleakala	29.581
2	G96	Mt. Lemmon Survey	2.967
3	T05	ATLAS-HKO, Haleakala	2.124
4	F51	Pan-STARRS 1, Haleakala	1.192

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	25.120
2	807	Cerro Tololo Observatory, La Serena	21.587
3	291	LPL/Spacewatch II	20.949
4	Z84	Calar Alto-Schmidt	7.243
5	691	Steward Observatory, Kitt Peak-Spacewatch	5.519
6	L34	Galhassin Robotic Telescope, Isnello	4.142
7	Z80	Northolt Branch Observatory	1.062
8	Y66	Two-Meter Twin Telescope, TTT2, Teide	0.761
9	595	Farra d'Isonzo	0.470
10	M49	IAS Remote Observatory, Hakos	0.198
11	W84	Cerro Tololo-DECam	0.003

Last year lunations Follow-up Ranking:

Follow-up Ranking for lunation starting on 2023-05-05

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.