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FOLLOW-UP RANKING ▹ 
FOLLOW-UP RANKING FOR PRESENT YEAR

Last Update: 2024-05-20 12:45 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 1175.162
2 F52 Pan-STARRS 2, Haleakala 946.577
3 G96 Mt. Lemmon Survey 881.781
4 F51 Pan-STARRS 1, Haleakala 753.482
5 V06 Catalina Sky Survey-Kuiper 414.445
6 033 Karl Schwarzschild Observatory, Tautenburg 292.017
7 Z84 Calar Alto-Schmidt 274.429
8 291 LPL/Spacewatch II 271.915
9 T12 University of Hawaii 88-inch telescope, Maunakea 239.509
10 J95 Great Shefford 168.566
11 474 Mount John Observatory, Lake Tekapo 165.632
12 807 Cerro Tololo Observatory, La Serena 158.317
13 691 Steward Observatory, Kitt Peak-Spacewatch 130.463
14 H01 Magdalena Ridge Observatory, Socorro 93.333
15 H21 Astronomical Research Observatory, Westfield 90.947
16 703 Catalina Sky Survey 73.342
17 O18 WFST, Lenghu 73.181
18 695 Kitt Peak 71.731
19 V00 Kitt Peak-Bok 70.276
20 T08 ATLAS-MLO, Mauna Loa 69.170

Big Surveys Follow-up Ranking

Rank
Obs. code
Observatory name
(link to Delta-PL assignment)
Cum. PL value
1 F52 Pan-STARRS 2, Haleakala 946.577
2 G96 Mt. Lemmon Survey 881.781
3 F51 Pan-STARRS 1, Haleakala 753.482
4 703 Catalina Sky Survey 73.342
5 V00 Kitt Peak-Bok 70.276
6 T08 ATLAS-MLO, Mauna Loa 69.170
7 T05 ATLAS-HKO, Haleakala 67.438
8 C51 WISE 52.098
9 W94 MAP, San Pedro de Atacama 39.080
10 W68 ATLAS Chile, Rio Hurtado 33.454
11 M22 ATLAS South Africa, Sutherland 15.908
12 K88 GINOP-KHK, Piszkesteto 4.301
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 1175.162
2 V06 Catalina Sky Survey-Kuiper 414.445
3 033 Karl Schwarzschild Observatory, Tautenburg 292.017
4 Z84 Calar Alto-Schmidt 274.429
5 291 LPL/Spacewatch II 271.915
6 T12 University of Hawaii 88-inch telescope, Maunakea 239.509
7 J95 Great Shefford 168.566
8 474 Mount John Observatory, Lake Tekapo 165.632
9 807 Cerro Tololo Observatory, La Serena 158.317
10 691 Steward Observatory, Kitt Peak-Spacewatch 130.463
11 H01 Magdalena Ridge Observatory, Socorro 93.333
12 H21 Astronomical Research Observatory, Westfield 90.947
13 O18 WFST, Lenghu 73.181
14 695 Kitt Peak 71.731
15 W84 Cerro Tololo-DECam 54.466
16 I93 St Pardon de Conques 47.752
17 L34 Galhassin Robotic Telescope, Isnello 44.449
18 H36 Sandlot Observatory, Scranton 41.910
19 J04 ESA Optical Ground Station, Tenerife 41.770
20 247 Roving Observer 40.279

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.