Backlunda

00856, 1908 CB, 1908CB, 1916 GQ, 1916GQ, 1955 PB, 1955PB, 1955 QO1, 1955QO1, 1958 LA, 1958LA, 1959 SQ, 1959SQ, 1962 MA, 1962MA, J08C00B, J16G00Q, J55P00B, J55Q01O, J58L00A, J59S00Q, J62M00A

All data for this body: [vot]

MPC data
Name (number) Backlunda (856)
a 2.43640
e 0.11832
i / sin(i) 14.3284 / 0.24748
q 2.14812
Q 2.72467
ω 72.4317
Node 125.4988
m 245.2183
n 0.2592
Epoch 2460800.5
nobs 12644
nopp 43
Years observed 1908-2025
rms 0.42
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.436
ep 0.159
sin(ip) 0.241
G 0.150
H 10.910
Mass
D 45.65 0.120
pV 0.034 0.0019
Value
Rotational Period 12.000
Period quality 2
Spectral Class C
Spectral Class Score 12.135
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4361 0.1593 0.2408 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
42.35 13.207 13.207 Masiero 2017AJ....154..168M NEATM
43.01 15.828 15.828 Masiero 2017AJ....154..168M NEATM
43.11 16.130 16.130 Masiero 2020PSJ.....1....5M NEATM
43.17 12.370 12.370 Masiero 2021PSJ.....2..162M NEATM
43.43 0.500 0.500 Usui 2011PASJ...63.1117U NEATM
44.19 4.420 4.420 Ali-Lagoa 2018A&A...612A..85A NEATM
45.45 0.130 0.130 Masiero 2014ApJ...791..121M NEATM
45.80 12.210 12.210 Masiero 2021PSJ.....2..162M NEATM
45.83 14.220 14.220 Masiero 2020PSJ.....1....5M NEATM
46.00 4.600 4.600 Ali-Lagoa 2018A&A...612A..85A NEATM
46.03 16.070 16.070 Masiero 2021PSJ.....2..162M NEATM
47.09 17.540 17.540 Masiero 2012ApJ...759L...8M NEATM
48.72 11.230 11.230 Masiero 2021PSJ.....2..162M NEATM
49.22 0.414 0.414 Masiero 2011ApJ...741...68M NEATM
63.68 15.620 15.620 Nugent 2016AJ....152...63N NEATM
67.06 13.720 13.720 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.020 0.0200 0.0200 Nugent 2016AJ....152...63N NEATM
0.020 0.0200 0.0200 Nugent 2016AJ....152...63N NEATM
0.032 0.0021 0.0021 Masiero 2011ApJ...741...68M NEATM
0.032 0.0110 0.0170 Masiero 2021PSJ.....2..162M NEATM
0.032 0.0170 0.0170 Masiero 2012ApJ...759L...8M NEATM
0.034 0.0240 0.0240 Masiero 2020PSJ.....1....5M NEATM
0.034 0.0200 0.0470 Masiero 2021PSJ.....2..162M NEATM
0.036 0.0160 0.0300 Masiero 2021PSJ.....2..162M NEATM
0.037 0.0170 0.0310 Masiero 2021PSJ.....2..162M NEATM
0.038 0.0330 0.0330 Masiero 2020PSJ.....1....5M NEATM
0.039 0.0260 0.0260 Masiero 2017AJ....154..168M NEATM
0.039 0.0297 0.0297 Masiero 2017AJ....154..168M NEATM
0.048 0.0100 0.0100 Ali-Lagoa 2018A&A...612A..85A NEATM
0.050 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.052 0.0100 0.0100 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
10.91 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
11.965 2 Synodic Polakis 2019MPBu...46..400P Lightcurve
12.028 2 Synodic Behrend LCDB Lightcurve
12.02894 2 Sidereal Hanus 2016A&A...586A.108H Model
12.05 2 Synodic Behrend LCDB Lightcurve
12.05 2 Synodic Behrend LCDB Lightcurve
12.08 2 Synodic Binzel 1987Icar...72..135B Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C Bus VIS Bus 2002Icar..158..146B SPEC
C 0.980000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
C C None None Movis NIR Popescu 2018A&A...617A..12P PHOT
C C 0.2058 0.2060 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X C DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT