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FOLLOW-UP RANKING ▹ 
FOLLOW-UP RANKING FOR PRESENT YEAR
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Last Update: 2024-05-06 14:17 UTC

Follow-up Ranking for present year 2024

Download ranking data (CSV file)

Overall Follow-up Ranking

Rank
Obs. code
Observatory name
(link to Delta-PL assignment)
 Cum. PL value
1 I52 Steward Observatory, Mt. Lemmon Station 1021.921
2 F52 Pan-STARRS 2, Haleakala 810.827
3 G96 Mt. Lemmon Survey 771.994
4 F51 Pan-STARRS 1, Haleakala 671.014
5 V06 Catalina Sky Survey-Kuiper 354.171
6 291 LPL/Spacewatch II 257.249
7 Z84 Calar Alto-Schmidt 253.974
8 033 Karl Schwarzschild Observatory, Tautenburg 251.747
9 T12 University of Hawaii 88-inch telescope, Maunakea 234.441
10 807 Cerro Tololo Observatory, La Serena 158.228
11 J95 Great Shefford 150.915
12 691 Steward Observatory, Kitt Peak-Spacewatch 114.434
13 474 Mount John Observatory, Lake Tekapo 113.844
14 H21 Astronomical Research Observatory, Westfield 84.436
15 H01 Magdalena Ridge Observatory, Socorro 82.347
16 O18 WFST, Lenghu 72.534
17 703 Catalina Sky Survey 72.370
18 T08 ATLAS-MLO, Mauna Loa 69.170
19 V00 Kitt Peak-Bok 68.673
20 T05 ATLAS-HKO, Haleakala 67.438

Big Surveys Follow-up Ranking

Rank
Obs. code
Observatory name
(link to Delta-PL assignment)
 Cum. PL value
1 F52 Pan-STARRS 2, Haleakala 810.827
2 G96 Mt. Lemmon Survey 771.994
3 F51 Pan-STARRS 1, Haleakala 671.014
4 703 Catalina Sky Survey 72.370
5 T08 ATLAS-MLO, Mauna Loa 69.170
6 V00 Kitt Peak-Bok 68.673
7 T05 ATLAS-HKO, Haleakala 67.438
8 C51 WISE 51.910
9 W94 MAP, San Pedro de Atacama 39.080
10 W68 ATLAS Chile, Rio Hurtado 33.222
11 M22 ATLAS South Africa, Sutherland 15.755
12 K88 GINOP-KHK, Piszkesteto 3.475
13 I41 Palomar Mountain--ZTF 0.392
14 U68 JPL SynTrack Robotic Telescope, Auberry 0.181

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 1021.921
2 V06 Catalina Sky Survey-Kuiper 354.171
3 291 LPL/Spacewatch II 257.249
4 Z84 Calar Alto-Schmidt 253.974
5 033 Karl Schwarzschild Observatory, Tautenburg 251.747
6 T12 University of Hawaii 88-inch telescope, Maunakea 234.441
7 807 Cerro Tololo Observatory, La Serena 158.228
8 J95 Great Shefford 150.915
9 691 Steward Observatory, Kitt Peak-Spacewatch 114.434
10 474 Mount John Observatory, Lake Tekapo 113.844
11 H21 Astronomical Research Observatory, Westfield 84.436
12 H01 Magdalena Ridge Observatory, Socorro 82.347
13 O18 WFST, Lenghu 72.534
14 695 Kitt Peak 59.655
15 W84 Cerro Tololo-DECam 54.315
16 J04 ESA Optical Ground Station, Tenerife 41.770
17 247 Roving Observer 40.279
18 H36 Sandlot Observatory, Scranton 40.177
19 L34 Galhassin Robotic Telescope, Isnello 36.968
20 L01 Visnjan Observatory, Tican 35.276

Download .csv file with all the observations

Previous years Follow-up Ranking:

Follow-up Ranking for 2021

Follow-up Ranking for 2022

Follow-up Ranking for 2023

Follow-up Ranking for 2024

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.