Alandreev

04420, 1936 PB, 1936PB, 1949 OB, 1949OB, 1958 TL, 1958TL, 1967 TD, 1967TD, 1971 OD1, 1971OD1, 1971 QB, 1971QB, 1987 DY1, 1987DY1, J36P00B, J49O00B, J58T00L, J67T00D, J71O01D, J71Q00B, J87D01Y

All data for this body: [vot]

MPC data
Name (number) Alandreev (4420)
a 2.67794
e 0.31729
i / sin(i) 6.9115 / 0.12034
q 1.82825
Q 3.52763
ω 1.8118
Node 302.3159
m 113.0015
n 0.2249
Epoch 2460800.5
nobs 4167
nopp 32
Years observed 1936-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.673
ep 0.305
sin(ip) 0.126
G 0.150
H 12.660
Mass
D 16.65 0.105
pV 0.058 0.0034
Value
Rotational Period 34.830
Period quality 2
Spectral Class B
Spectral Class Score 3.846
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6734 0.3051 0.1258 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.36 2.750 2.750 Masiero 2021PSJ.....2..162M NEATM
14.46 3.460 3.460 Masiero 2021PSJ.....2..162M NEATM
15.20 1.520 1.520 Ali-Lagoa 2018A&A...612A..85A NEATM
15.42 4.003 4.003 Masiero 2017AJ....154..168M NEATM
16.03 0.169 0.169 Masiero 2011ApJ...741...68M NEATM
16.25 0.220 0.220 Usui 2011PASJ...63.1117U NEATM
17.52 0.170 0.170 Masiero 2012ApJ...759L...8M NEATM
19.84 1.980 1.980 Ali-Lagoa 2018A&A...612A..85A NEATM
22.10 3.530 3.530 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.030 0.0200 0.0200 Nugent 2016AJ....152...63N NEATM
0.032 0.0090 0.0090 Masiero 2012ApJ...759L...8M NEATM
0.048 0.0100 0.0100 Ali-Lagoa 2018A&A...612A..85A NEATM
0.059 0.0180 0.0250 Masiero 2021PSJ.....2..162M NEATM
0.064 0.0043 0.0043 Masiero 2011ApJ...741...68M NEATM
0.067 0.0368 0.0368 Masiero 2017AJ....154..168M NEATM
0.082 0.0160 0.0160 Ali-Lagoa 2018A&A...612A..85A NEATM
0.086 0.0300 0.0460 Masiero 2021PSJ.....2..162M 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
12.66 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
34.838 2 Sidereal Durech 2020A&A...643A..59D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.641 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C X 0.2819 0.2940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
K X 0.4478 0.2940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.4871 0.2940 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT