Alcock

03174, 1962 YD, 1962YD, 1969 BB, 1969BB, 1973 YO1, 1973YO1, 1975 EO3, 1975EO3, 1978 RB1, 1978RB1, 1978 TJ3, 1978TJ3, 1979 YR8, 1979YR8, 1980 AH, 1980AH, 1981 GF, 1981GF, 1984 UV, 1984UV, J62Y00D, J69B00B, J73Y01O, J75E03O, J78R01B, J78T03J, J79Y08R, J80A00H, J81G00F, J84U00V

All data for this body: [vot]

MPC data
Name (number) Alcock (3174)
a 3.14717
e 0.17164
i / sin(i) 2.3711 / 0.04137
q 2.60700
Q 3.68734
ω 3.1614
Node 72.1957
m 72.1082
n 0.1765
Epoch 2460800.5
nobs 4565
nopp 33
Years observed 1973-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.155
ep 0.155
sin(ip) 0.024
G 0.150
H 12.110
Mass
D 18.70 0.768
pV 0.067 0.0197
Value
Rotational Period 7.000
Period quality 3-
Spectral Class B
Spectral Class Score 17.177
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
656 Beagle 0 Beagle Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis 0.3300 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
656 Beagle 620 Beagle -0.6900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1548 0.1549 0.0240 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
17.27 3.460 3.460 Ali-Lagoa 2018A&A...612A..85A NEATM
18.66 0.800 0.800 Usui 2011PASJ...63.1117U NEATM
22.38 4.480 4.480 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.057 0.0230 0.0230 Ali-Lagoa 2018A&A...612A..85A NEATM
0.096 0.0380 0.0380 Ali-Lagoa 2018A&A...612A..85A NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.11 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
7.03116 2 Sidereal Durech 2019A&A...631A...2D Model
7.0312 2 Sidereal Durech 2023A&A...675A..24D Model
7.032 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve
7.05 3- Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B B 0.0927 0.2990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.3929 0.2990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.4515 0.2990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.5579 0.2990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.6238 0.2990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.7441 0.2990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.990000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
C B 0.5702 0.2990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C B 0.5838 0.2990 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT