Efremiana

02269, 1929 XP, 1929XP, 1951 WO1, 1951WO1, 1962 XA, 1962XA, 1976 JA2, 1976JA2, 1978 VE, 1978VE, J29X00P, J51W01O, J62X00A, J76J02A, J78V00E

All data for this body: [vot]

MPC data
Name (number) Efremiana (2269)
a 3.12860
e 0.07833
i / sin(i) 15.4020 / 0.26559
q 2.88355
Q 3.37365
ω 33.9910
Node 66.4768
m 64.9809
n 0.1781
Epoch 2460800.5
nobs 4582
nopp 33
Years observed 1929-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.129
ep 0.087
sin(ip) 0.249
G 0.150
H 11.120
Mass
D 28.94 0.231
pV 0.123 0.0105
Value
Rotational Period 6.450
Period quality 2
Spectral Class B
Spectral Class Score 36.466
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1288 0.0874 0.2494 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
22.92 1.600 1.600 Tedesco 2002AJ....123.1056T STM
25.32 2.160 2.160 Masiero 2012ApJ...759L...8M NEATM
25.62 5.120 5.120 Ali-Lagoa 2018A&A...612A..85A NEATM
26.20 2.620 2.620 Ali-Lagoa 2018A&A...612A..85A NEATM
26.79 0.580 0.580 Usui 2011PASJ...63.1117U NEATM
29.60 0.258 0.258 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.105 0.0210 0.0210 Ali-Lagoa 2018A&A...612A..85A NEATM
0.110 0.0180 0.0180 Masiero 2012ApJ...759L...8M NEATM
0.110 0.0440 0.0440 Ali-Lagoa 2018A&A...612A..85A NEATM
0.127 0.0213 0.0213 Masiero 2011ApJ...741...68M NEATM
0.212 0.0330 0.0330 Tedesco 2002AJ....123.1056T STM
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
11.12 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
6.458 2 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 0.1296 0.3040 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.3345 0.3040 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.4414 0.3040 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.4770 0.3040 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.5313 0.3040 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.6205 0.3040 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.8086 0.3040 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.9036 0.3040 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.9062 0.3040 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
B B 0.9249 0.3040 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C B 0.3577 0.3040 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C B 0.4192 0.3040 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C B 0.6307 0.3040 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT