Hedwig

00476, 1901QB, 1974PL, J01Q00B, J74P00L

All data for this body: [vot]

MPC data
Name (number) Hedwig (476)
Packed designation 00476
a 2.65024
e 0.07304
i / sin(i) 10.9254 / 0.18953
q 2.45667
Q 2.84380
ω 1.3998
Node 286.3386
m 13.0814
n 0.2284
Epoch 2459600.5
nobs 2996
nopp 63
Years observed 1901-2021
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.650
ep 0.073
sin(ip) 0.206
Value Standard error
G 0.150
H 8.650
Mass 1.966e+18 7.061e+17
D 129.04 0.758
pV 0.046 0.0014
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6496 0.0727 0.2056 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Mass data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.6300e+18 Folkner 2014IPNPR.196C...1F Ephem
2.3020e+18 9.9855e+17 9.9855e+17 Fienga INPOP19a Ephem
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
106.15 27.050 27.050 Nugent 2016AJ....152...63N NEATM
106.47 21.290 21.290 Ali-Lagoa 2018A&A...612A..85A NEATM
108.81 26.698 26.698 Masiero 2017AJ....154..168M NEATM
111.06 1.540 1.540 Usui 2011PASJ...63.1117U NEATM
115.06 26.440 26.440 Nugent 2016AJ....152...63N NEATM
116.76 2.600 2.600 Tedesco 2002AJ....123.1056T STM
118.93 11.890 11.890 Ali-Lagoa 2018A&A...612A..85A NEATM
119.92 32.100 32.100 Masiero 2020PSJ.....1....5M NEATM
123.71 47.080 47.080 Masiero 2021PSJ.....2..162M NEATM
123.78 32.090 32.090 Masiero 2020PSJ.....1....5M NEATM
124.02 5.835 5.835 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
124.61 4.018 4.018 Ryan&Woodward 2010AJ....140..933R IRAS-STM
138.49 0.970 0.970 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.035 0.0050 0.0050 Masiero 2012ApJ...759L...8M NEATM
0.043 0.0028 0.0028 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.044 0.0040 0.0040 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.044 0.0260 0.0260 Masiero 2020PSJ.....1....5M NEATM
0.044 0.0270 0.0270 Masiero 2020PSJ.....1....5M NEATM
0.045 0.0210 0.0410 Masiero 2021PSJ.....2..162M NEATM
0.049 0.0100 0.0100 Ali-Lagoa 2018A&A...612A..85A NEATM
0.049 0.0020 0.0020 Tedesco 2002AJ....123.1056T STM
0.050 0.0200 0.0200 Nugent 2016AJ....152...63N NEATM
0.050 0.0400 0.0400 Nugent 2016AJ....152...63N NEATM
0.052 0.0250 0.0250 Masiero 2017AJ....154..168M NEATM
0.061 0.0240 0.0240 Ali-Lagoa 2018A&A...612A..85A NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.65 MPC-2022-01-18 MPC-2022-01-18 Phot