1987 DH6

1987DH6, 09559, 1983 GG2, 1983GG2, 1991 BB1, 1991BB1, J83G02G, J87D06H, J91B01B

All data for this body: [vot]

MPC data
Name (number) 1987 DH6 (9559)
a 2.69429
e 0.10716
i / sin(i) 1.4046 / 0.02451
q 2.40556
Q 2.98301
ω 344.8065
Node 263.1950
m 149.2911
n 0.2229
Epoch 2460800.5
nobs 4024
nopp 30
Years observed 1953-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.695
ep 0.131
sin(ip) 0.042
G 0.150
H 13.450
Mass
D 14.82 0.128
pV 0.045 0.0040
Value
Rotational Period 203.200
Period quality 2
Spectral Class X
Spectral Class Score 5.892
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6948 0.1308 0.0424 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.49 1.060 1.060 Masiero 2012ApJ...759L...8M NEATM
12.77 3.760 3.760 Masiero 2021PSJ.....2..162M NEATM
13.74 4.330 4.330 Masiero 2020PSJ.....1....5M NEATM
14.10 1.100 1.100 Tedesco 2002AJ....123.1056T STM
14.23 0.218 0.218 Masiero 2011ApJ...741...68M NEATM
14.61 4.330 4.330 Masiero 2021PSJ.....2..162M NEATM
15.13 0.170 0.170 Nugent 2016AJ....152...63N NEATM
15.44 6.280 6.280 Masiero 2021PSJ.....2..162M NEATM
16.20 1.620 1.620 Ali-Lagoa 2018A&A...612A..85A NEATM
16.21 0.600 0.600 Usui 2011PASJ...63.1117U NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.034 0.0070 0.0070 Ali-Lagoa 2018A&A...612A..85A NEATM
0.034 0.0210 0.0510 Masiero 2021PSJ.....2..162M NEATM
0.040 0.0180 0.0320 Masiero 2021PSJ.....2..162M NEATM
0.046 0.0370 0.0370 Masiero 2020PSJ.....1....5M NEATM
0.047 0.0080 0.0080 Tedesco 2002AJ....123.1056T STM
0.050 0.0084 0.0084 Masiero 2011ApJ...741...68M NEATM
0.059 0.0110 0.0110 Masiero 2012ApJ...759L...8M NEATM
0.062 0.0250 0.0420 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
13.45 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
203.26 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
205.053 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
205.14 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
X 0.982 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT