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15743 (1991 ND7)
Classification: Main-belt Asteroid          SPK-ID: 2015743
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04573732144043104 3.5981e-08  
a 2.706483136902587 1.077e-08 au
q 2.582695847696967 9.8738e-08 au
i 2.796837729180687 3.8704e-06 deg
node 155.100727000436 7.2766e-05 deg
peri 161.9115472999556 8.3479e-05 deg
M 154.9713185919666 4.1926e-05 deg
tp 2458300.407794150808
(2018-Jun-30.90779415)
0.00018888 TDB
period 1626.321543854851
4.45
9.7076e-06
2.658e-08
d
yr
n .2213584400700345 1.3213e-09 deg/d
Q 2.830270426108207 1.1263e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1955  
   data-arc span      15390 days (42.14 yr)  
   first obs. used      1978-09-02  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52295  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:31:39  

Additional Information
 Earth MOID = 1.5693 au 
 Jupiter MOID = 2.29469 au 
 T_jup = 3.362 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456448.5 (2013-Jun-05.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04761021070997617 3.6092e-08  
q 2.577369523729354 9.9264e-08 au
tp 2456667.419310464861
(2014-Jan-09.91931046)
0.00018033 TDB
node 155.1399159611837 7.2727e-05 deg
peri 160.3536522864163 8.2635e-05 deg
i 2.796384349918307 3.8735e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1955  
   data-arc span      15390 days (42.14 yr)  
   first obs. used      1978-09-02  
   last obs. used      2020-10-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52295  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:31:39  

Additional Information
 Jupiter MOID = 2.29469 au 
 T_jup = 3.362 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.302652618705122E-15 -3.563661727732795E-15 1.112515946447384E-12 7.766978278413291E-15 2.068972564943519E-13 1.965668476698159E-16
q -3.563661727732795E-15 9.853438310802074E-15 -2.881523529128605E-12 -2.121523811650898E-14 -5.343954400023419E-13 -5.057277893834244E-16
tp 1.112515946447384E-12 -2.881523529128605E-12 3.252039746194809E-8 7.034925138939393E-12 7.086399146080877E-9 -1.03226774671229E-12
node 7.766978278413291E-15 -2.121523811650898E-14 7.034925138939393E-12 5.289256518022642E-9 -5.281325493053057E-9 9.734353605537171E-12
peri 2.068972564943519E-13 -5.343954400023419E-13 7.086399146080877E-9 -5.281325493053057E-9 6.828498842718111E-9 -9.957752093145465E-12
i 1.965668476698159E-16 -5.057277893834244E-16 -1.03226774671229E-12 9.734353605537171E-12 -9.957752093145465E-12 1.500416150292823E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1   n/a MPO350928  

15743 (1991 ND7)          Discovered 1991-Jul-12 by Debehogne, H. at La Silla
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1924-Oct-25 15:20 < 00:01 Eunom 0.0332366450692217 0.0332344988412364 0.033238796768531 5.64152568888165 5.64152561401642 2424084.139104052 0.869725131337023 711.754927579417 31.7094093671151 -81.7263005251551 155090.127052211 T 28 CATAB v2.0f-lin.ifort 2020-Nov-13 02:31:44 2020-Nov-13 02:31
1971-Apr-08 21:52 00:02 Psych 0.0263884954611537 0.0263827722138884 0.0263942187487755 2.12479339287194 2.12479317708664 2441050.411021084 1.63497653201341 289.488091066085 49.2830639000673 -10.6581271086117 19911.9545602769 T 28 CATAB v2.0f-lin.ifort 2020-Nov-13 02:31:44 2020-Nov-13 02:31

Alternate Designations
 1991 ND7 = 1978 RH7 = 1996 TL38 = 1999 GA26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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