Hirayama

01999, 1935 GF, 1935GF, 1940 EH, 1940EH, 1951 EY1, 1951EY1, 1951 FA, 1951FA, 1965 UF, 1965UF, 1969 NB, 1969NB, 1973 DR, 1973DR, 1975 NE, 1975NE, J35G00F, J40E00H, J51E01Y, J51F00A, J65U00F, J69N00B, J73D00R, J75N00E

All data for this body: [vot]

MPC data
Name (number) Hirayama (1999)
a 3.11422
e 0.11817
i / sin(i) 12.5342 / 0.21702
q 2.74622
Q 3.48221
ω 356.0261
Node 147.8560
m 75.1333
n 0.1793
Epoch 2460200.5
nobs 6958
nopp 36
Years observed 1940-2023
rms 0.41
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.116
ep 0.146
sin(ip) 0.200
Value Standard error
G 0.150
H 11.140
Mass
D 36.41 0.292
pV 0.086 0.0025
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1160 0.1459 0.1998 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
29.10 0.899 0.899 Ryan&Woodward 2010AJ....140..933R IRAS-STM
30.08 7.970 7.970 Nugent 2016AJ....152...63N NEATM
31.46 8.707 8.707 Masiero 2017AJ....154..168M NEATM
32.54 8.730 8.730 Masiero 2020PSJ.....1....5M NEATM
33.16 3.320 3.320 Ali-Lagoa 2018A&A...612A..85A NEATM
33.95 2.100 2.100 Tedesco 2002AJ....123.1056T STM
35.68 0.550 0.550 Usui 2011PASJ...63.1117U NEATM
37.21 3.720 3.720 Ali-Lagoa 2018A&A...612A..85A NEATM
37.58 7.520 7.520 Ali-Lagoa 2018A&A...612A..85A NEATM
38.05 1.443 1.443 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
38.28 0.400 0.400 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.053 0.0050 0.0050 Masiero 2012ApJ...759L...8M NEATM
0.059 0.0240 0.0240 Ali-Lagoa 2018A&A...612A..85A NEATM
0.060 0.0120 0.0120 Ali-Lagoa 2018A&A...612A..85A NEATM
0.069 0.0850 0.0850 Masiero 2020PSJ.....1....5M NEATM
0.070 0.0054 0.0054 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.075 0.0150 0.0150 Ali-Lagoa 2018A&A...612A..85A NEATM
0.077 0.0530 0.0530 Masiero 2017AJ....154..168M NEATM
0.080 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM
0.088 0.0120 0.0120 Tedesco 2002AJ....123.1056T STM
0.120 0.0040 0.0040 Ryan&Woodward 2010AJ....140..933R IRAS-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
11.14 MPC-2023-12-04 MPC-2023-12-04 Phot