Druyan

04970, 1951 YB, 1951YB, 1988 VO2, 1988VO2, J51Y00B, J88V02O

All data for this body: [vot]

MPC data
Name (number) Druyan (4970)
a 2.39589
e 0.14400
i / sin(i) 7.2242 / 0.12575
q 2.05088
Q 2.74090
ω 130.4967
Node 292.0758
m 293.6624
n 0.2658
Epoch 2460800.5
nobs 5800
nopp 31
Years observed 1951-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.396
ep 0.143
sin(ip) 0.139
G 0.150
H 13.620
Mass
D 7.96 0.056
pV 0.154 0.0142
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 6.746
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3959 0.1430 0.1391 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.15 0.160 0.160 Masiero 2012ApJ...759L...8M NEATM
8.07 0.060 0.060 Masiero 2011ApJ...741...68M NEATM
8.26 2.230 2.230 Nugent 2016AJ....152...63N NEATM
8.61 2.180 2.180 Masiero 2020PSJ.....1....5M NEATM
8.97 2.470 2.470 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.090 0.1700 0.1700 Nugent 2016AJ....152...63N NEATM
0.106 0.0410 0.0660 Masiero 2021PSJ.....2..162M NEATM
0.114 0.0650 0.0650 Masiero 2020PSJ.....1....5M NEATM
0.142 0.0342 0.0342 Masiero 2011ApJ...741...68M NEATM
0.165 0.0170 0.0170 Masiero 2012ApJ...759L...8M 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
13.62 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.149 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.9753 0.9753 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT