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FOLLOW-UP RANKING ▹ 
FOLLOW-UP RANKING FOR PRESENT YEAR
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Last Update: 2024-04-27 12:54 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 765.418
2 F52 Pan-STARRS 2, Haleakala 761.242
3 F51 Pan-STARRS 1, Haleakala 611.672
4 G96 Mt. Lemmon Survey 556.627
5 V06 Catalina Sky Survey-Kuiper 273.802
6 033 Karl Schwarzschild Observatory, Tautenburg 239.230
7 Z84 Calar Alto-Schmidt 234.692
8 291 LPL/Spacewatch II 205.688
9 T12 University of Hawaii 88-inch telescope, Maunakea 202.582
10 J95 Great Shefford 142.363
11 807 Cerro Tololo Observatory, La Serena 136.641
12 691 Steward Observatory, Kitt Peak-Spacewatch 106.861
13 474 Mount John Observatory, Lake Tekapo 102.776
14 H21 Astronomical Research Observatory, Westfield 84.429
15 H01 Magdalena Ridge Observatory, Socorro 82.347
16 O18 WFST, Lenghu 72.534
17 703 Catalina Sky Survey 69.548
18 T08 ATLAS-MLO, Mauna Loa 69.158
19 T05 ATLAS-HKO, Haleakala 67.259
20 V00 Kitt Peak-Bok 59.007

Big Surveys Follow-up Ranking

Rank
Obs. code
Observatory name
(link to Delta-PL assignment)
 Cum. PL value
1 F52 Pan-STARRS 2, Haleakala 761.242
2 F51 Pan-STARRS 1, Haleakala 611.672
3 G96 Mt. Lemmon Survey 556.627
4 703 Catalina Sky Survey 69.548
5 T08 ATLAS-MLO, Mauna Loa 69.158
6 T05 ATLAS-HKO, Haleakala 67.259
7 V00 Kitt Peak-Bok 59.007
8 C51 WISE 51.903
9 W94 MAP, San Pedro de Atacama 37.699
10 W68 ATLAS Chile, Rio Hurtado 33.222
11 M22 ATLAS South Africa, Sutherland 5.463
12 K88 GINOP-KHK, Piszkesteto 3.085
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 765.418
2 V06 Catalina Sky Survey-Kuiper 273.802
3 033 Karl Schwarzschild Observatory, Tautenburg 239.230
4 Z84 Calar Alto-Schmidt 234.692
5 291 LPL/Spacewatch II 205.688
6 T12 University of Hawaii 88-inch telescope, Maunakea 202.582
7 J95 Great Shefford 142.363
8 807 Cerro Tololo Observatory, La Serena 136.641
9 691 Steward Observatory, Kitt Peak-Spacewatch 106.861
10 474 Mount John Observatory, Lake Tekapo 102.776
11 H21 Astronomical Research Observatory, Westfield 84.429
12 H01 Magdalena Ridge Observatory, Socorro 82.347
13 O18 WFST, Lenghu 72.534
14 695 Kitt Peak 56.968
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 39.290
19 L34 Galhassin Robotic Telescope, Isnello 36.035
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.