Hedda

00207, 1879UA, 1932CL1, 1934XJ, 1953BF, I79U00A, J32C01L, J34X00J, J53B00F

All data for this body: [vot]

MPC data
Name (number) Hedda (207)
Packed designation 00207
a 2.28387
e 0.02971
i / sin(i) 3.8024 / 0.06631
q 2.21601
Q 2.35173
ω 192.6245
Node 29.1454
m 246.4365
n 0.2856
Epoch 2459600.5
nobs 3790
nopp 54
Years observed 1882-2022
rms 0.52
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.284
ep 0.070
sin(ip) 0.063
Value Standard error
G 0.150
H 10.120
Mass
D 55.62 0.010
pV 0.043 0.0013
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2840 0.0698 0.0634 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
51.57 0.013 0.013 Ryan&Woodward 2010AJ....140..933R MSX-STM
56.66 17.411 17.411 Masiero 2017AJ....154..168M NEATM
57.88 0.150 0.150 Masiero 2014ApJ...791..121M NEATM
58.00 5.800 5.800 Ali-Lagoa 2018A&A...612A..85A NEATM
58.08 17.000 17.000 Masiero 2020PSJ.....1....5M NEATM
58.70 1.300 1.300 Tedesco 2002AJ....123.1056T STM
58.74 14.740 14.740 Masiero 2020PSJ.....1....5M NEATM
59.54 11.280 11.280 Masiero 2020PSJ.....1....5M NEATM
59.65 10.772 10.772 Masiero 2017AJ....154..168M NEATM
60.12 21.900 21.900 Masiero 2021PSJ.....2..162M NEATM
60.50 18.430 18.430 Masiero 2021PSJ.....2..162M NEATM
61.31 1.154 1.154 Masiero 2011ApJ...741...68M NEATM
61.66 0.016 0.016 Ryan&Woodward 2010AJ....140..933R MSX-NEATM
61.76 1.572 1.572 Ryan&Woodward 2010AJ....140..933R IRAS-STM
63.59 20.600 20.600 Masiero 2021PSJ.....2..162M NEATM
63.87 3.313 3.313 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
63.91 1.000 1.000 Usui 2011PASJ...63.1117U NEATM
66.32 27.840 27.840 Masiero 2012ApJ...759L...8M NEATM
73.08 10.410 10.410 Nugent 2016AJ....152...63N NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.030 0.0300 0.0300 Nugent 2016AJ....152...63N NEATM
0.032 0.0180 0.0180 Masiero 2012ApJ...759L...8M NEATM
0.033 0.0140 0.0250 Masiero 2021PSJ.....2..162M NEATM
0.034 0.0019 0.0019 Masiero 2011ApJ...741...68M NEATM
0.035 0.0150 0.0150 Masiero 2020PSJ.....1....5M NEATM
0.035 0.0140 0.0250 Masiero 2021PSJ.....2..162M NEATM
0.037 0.0210 0.0210 Masiero 2020PSJ.....1....5M NEATM
0.038 0.0148 0.0148 Masiero 2017AJ....154..168M NEATM
0.038 0.0250 0.0250 Masiero 2020PSJ.....1....5M NEATM
0.038 0.0170 0.0330 Masiero 2021PSJ.....2..162M NEATM
0.044 0.0313 0.0313 Masiero 2017AJ....154..168M NEATM
0.047 0.0050 0.0050 Ryan&Woodward 2010AJ....140..933R IRAS-NEATM
0.050 0.0026 0.0026 Ryan&Woodward 2010AJ....140..933R IRAS-STM
0.050 Ryan&Woodward 2010AJ....140..933R MSX-NEATM
0.055 0.0110 0.0110 Ali-Lagoa 2018A&A...612A..85A NEATM
0.055 0.0030 0.0030 Tedesco 2002AJ....123.1056T STM
0.060 0.0100 0.0100 Masiero 2014ApJ...791..121M NEATM
0.071 Ryan&Woodward 2010AJ....140..933R MSX-STM
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
10.12 MPC-2022-01-18 MPC-2022-01-18 Phot