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FOLLOW-UP RANKING ▹ 
FOLLOW-UP RANKING FOR PRESENT YEAR
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Last Update: 2024-10-10 13:51 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 F52 Pan-STARRS 2, Haleakala 1928.522
2 I52 Steward Observatory, Mt. Lemmon Station 1860.746
3 F51 Pan-STARRS 1, Haleakala 1484.293
4 G96 Mt. Lemmon Survey 1336.846
5 V06 Catalina Sky Survey-Kuiper 647.242
6 Z84 Calar Alto-Schmidt 546.557
7 291 LPL/Spacewatch II 414.342
8 T14 Canada-France-Hawaii Telescope, Maunakea 366.673
9 033 Karl Schwarzschild Observatory, Tautenburg 348.206
10 T12 University of Hawaii 88-inch telescope, Maunakea 342.859
11 J95 Great Shefford 308.936
12 807 Cerro Tololo Observatory, La Serena 264.402
13 474 Mount John Observatory, Lake Tekapo 252.509
14 691 Steward Observatory, Kitt Peak-Spacewatch 209.977
15 H21 Astronomical Research Observatory, Westfield 168.704
16 H01 Magdalena Ridge Observatory, Socorro 148.386
17 H36 Sandlot Observatory, Scranton 144.848
18 J04 ESA Optical Ground Station, Tenerife 130.410
19 695 Kitt Peak 120.537
20 Y05 SONEAR Wykrota-CEAMIG, Serra da Piedade 117.522
21 T08 ATLAS-MLO, Mauna Loa 116.521
22 T05 ATLAS-HKO, Haleakala 111.886
23 I93 St Pardon de Conques 109.246
24 703 Catalina Sky Survey 96.272
25 W84 Cerro Tololo-DECam 95.059
26 L87 Moonbase South Observatory, Hakos 92.186
27 U52 Shasta Valley Observatory, Grenada 81.330
28 V00 Kitt Peak-Bok 79.099
29 W68 ATLAS Chile, Rio Hurtado 74.267
30 O18 WFST, Lenghu 73.629
31 204 Schiaparelli Observatory 70.964
32 L34 Galhassin Robotic Telescope, Isnello 59.383
33 734 Farpoint Observatory, Eskridge 55.500
34 C51 WISE 52.435
35 W16 Pleasant Groves Observatory 50.267
36 X09 Deep Random Survey, Rio Hurtado 49.423
37 M45 Starhopper Observatory, Sfantu Gheorghe 46.734
38 K74 Muensterschwarzach Observatory, Schwarzach 45.967
39 958 Observatoire de Dax 45.911
40 247 Roving Observer 40.279
41 L01 Visnjan Observatory, Tican 39.977
42 W94 MAP, San Pedro de Atacama 39.080
43 Z80 Northolt Branch Observatory 37.444
44 C40 Kuban State University Astrophysical Observatory 33.631
45 309 Cerro Paranal 31.579
46 O46 Daocheng Glacier Observatory 31.021
47 M49 IAS Remote Observatory, Hakos 26.298
48 M22 ATLAS South Africa, Sutherland 25.218
49 C95 SATINO Remote Observatory, Haute Provence 24.962
50 W57 ESA TBT La Silla Observatory 21.835

Big Surveys Follow-up Ranking

Rank
Obs. code
Observatory name
(link to Delta-PL assignment)
 Cum. PL value
1 F52 Pan-STARRS 2, Haleakala 1928.522
2 F51 Pan-STARRS 1, Haleakala 1484.293
3 G96 Mt. Lemmon Survey 1336.846
4 T08 ATLAS-MLO, Mauna Loa 116.521
5 T05 ATLAS-HKO, Haleakala 111.886
6 703 Catalina Sky Survey 96.272
7 V00 Kitt Peak-Bok 79.099
8 W68 ATLAS Chile, Rio Hurtado 74.267
9 C51 WISE 52.435
10 W94 MAP, San Pedro de Atacama 39.080
11 M22 ATLAS South Africa, Sutherland 25.218
12 K88 GINOP-KHK, Piszkesteto 8.625
13 I41 Palomar Mountain--ZTF 3.309
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 1860.746
2 V06 Catalina Sky Survey-Kuiper 647.242
3 Z84 Calar Alto-Schmidt 546.557
4 291 LPL/Spacewatch II 414.342
5 T14 Canada-France-Hawaii Telescope, Maunakea 366.673
6 033 Karl Schwarzschild Observatory, Tautenburg 348.206
7 T12 University of Hawaii 88-inch telescope, Maunakea 342.859
8 J95 Great Shefford 308.936
9 807 Cerro Tololo Observatory, La Serena 264.402
10 474 Mount John Observatory, Lake Tekapo 252.509
11 691 Steward Observatory, Kitt Peak-Spacewatch 209.977
12 H21 Astronomical Research Observatory, Westfield 168.704
13 H01 Magdalena Ridge Observatory, Socorro 148.386
14 H36 Sandlot Observatory, Scranton 144.848
15 J04 ESA Optical Ground Station, Tenerife 130.410
16 695 Kitt Peak 120.537
17 Y05 SONEAR Wykrota-CEAMIG, Serra da Piedade 117.522
18 I93 St Pardon de Conques 109.246
19 W84 Cerro Tololo-DECam 95.059
20 L87 Moonbase South Observatory, Hakos 92.186
21 U52 Shasta Valley Observatory, Grenada 81.330
22 O18 WFST, Lenghu 73.629
23 204 Schiaparelli Observatory 70.964
24 L34 Galhassin Robotic Telescope, Isnello 59.383
25 734 Farpoint Observatory, Eskridge 55.500
26 W16 Pleasant Groves Observatory 50.267
27 X09 Deep Random Survey, Rio Hurtado 49.423
28 M45 Starhopper Observatory, Sfantu Gheorghe 46.734
29 K74 Muensterschwarzach Observatory, Schwarzach 45.967
30 958 Observatoire de Dax 45.911
31 247 Roving Observer 40.279
32 L01 Visnjan Observatory, Tican 39.977
33 Z80 Northolt Branch Observatory 37.444
34 C40 Kuban State University Astrophysical Observatory 33.631
35 309 Cerro Paranal 31.579
36 O46 Daocheng Glacier Observatory 31.021
37 M49 IAS Remote Observatory, Hakos 26.298
38 C95 SATINO Remote Observatory, Haute Provence 24.962
39 W57 ESA TBT La Silla Observatory 21.835
40 W95 Observatorio Panameno, San Pedro de Atacama 18.001
41 595 Farra d'Isonzo 17.356
42 V24 Sonoran Desert Skies Observatory, Pearce 16.568
43 858 Tebbutt Observatory, Edgewood 16.423
44 104 San Marcello Pistoiese 15.923
45 G37 Lowell Discovery Telescope 14.601
46 290 Mt. Graham-VATT 14.395
47 N89 Xingming Observatory #2, Nanshan 14.055
48 900 Moriyama 13.900
49 K87 Dettelbach Vineyard Observatory 13.861
50 K83 Beppe Forti Astronomical Observatory, Montelupo 13.180

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.