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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1911537216456374 | 1.5464e-08 | |
| a | 2.200658504191346 | 4.7066e-09 | au |
| q | 1.779994441044049 | 3.3891e-08 | au |
| i | 3.853018630320158 | 1.2063e-06 | deg |
| node | 15.74874845081336 | 9.6331e-06 | deg |
| peri | 297.4713845879556 | 1.1888e-05 | deg |
| M | 172.5597527565945 | 6.6598e-06 | deg |
| tp | 2458628.936591338184
(2019-May-25.43659134) | 2.1659e-05 | TDB |
| period | 1192.414939354336
3.26 | 3.8254e-06
1.047e-08 | d
yr |
| n | .3019083274777917 | 9.6856e-10 | deg/d |
| Q | 2.621322567338643 | 5.6063e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.36 |
|
n/a |
MPCxxxxx |
|
|
| 7327 Crawford | Discovered 1983 Sept. 6 by E. Bowell at the Anderson Mesa Station of Lowell Observatory. |
| Named in honor of David L. Crawford (b. 1931), astronomer at the Kitt Peak National Observatory recognized for his fundamental contributions to protecting dark skies around observatories from light pollution through good outdoor lighting practices. In 1972 he was instrumental in establishing the first comprehensive lighting code, which regulated outdoor lighting in southern Arizona, and the code has become a model for such regulation throughout the world. Crawford was cofounder and executive director of the International Dark-Sky Association, a worldwide organization dedicated to the preservation of dark skies. He was also responsible for establishing the fundamental standards of the Strömgren photometric system. Name suggested and citation provided by D. R. Davis. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 19990402/MPCPages.arc | Last Updated: 2010-06-11 |
|
Alternate Designations
| 1983 RZ1 = 1976 JC7 = 1980 VD4 = A908 QC |
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