Asteroids

2023SY1 help

Last update: 2025-02-19 13:28 UTC

Orbital Properties

Epoch

60800.0

MJD

Orbit type

Apollo

Perihelion (q)

0.922

Aphelion (Q)

2.806

Eccentricity (e)

0.505

Inclination (i)

3.2

deg

Orbit period (P)

929.7

Earth MOID

0.01017

U parameter

8.4

Next Earth close approach

Date

2051-09-30

Nominal distance (from Earth center)

0.01196

1788723

Maximum Brightness

19.6

mag

Risk

Object is not in risk list

Object is not in priority list

Physical Properties

Absolute Magnitude (H)

27.3

mag

Diameter

9 - 20*

Taxonomic type

Rotation period (T)

Discovery Information

Discovery Date

2023-09-18

Observatory

Pan-STARRS 1, Haleakala

ORBIT VISUALISATION TOOLS

External links

Proper elements

Epoch

Near present day

Near middle of observation arc

Orbit properties

Epoch
Semimajor Axis
Eccentricity (e)
Inclination (i)
Long. of Ascending Node (Ω)
Arg. of Perihelion (ω)
Mean Anomaly (M)
Perihelion distance
Aphelion distance
Asc. Node-Earth Sep.
Desc. Node-Earth Sep.
MOID
Orbit Period
U parameter

Value

1-sigma variation

Unit

Epoch

Value

60800.0000

1-sigma variation

Unit

MJD

Semimajor Axis

Value

1.864157

1-sigma variation

0.005010

Unit

Eccentricity (e)

Value

0.505218

1-sigma variation

0.001397

Unit

Inclination (i)

Value

3.2263

1-sigma variation

0.0072

Unit

Long. of Ascending Node (Ω)

Value

357.4053

1-sigma variation

0.0005

Unit

Arg. of Perihelion (ω)

Value

50.7007

1-sigma variation

0.0023

Unit

Mean Anomaly (M)

Value

213.52812

1-sigma variation

0.85236

Unit

Perihelion distance

Value

0.922352

1-sigma variation

Unit

Aphelion distance

Value

2.805962

1-sigma variation

Unit

Asc. Node-Earth Sep.

Value

0.047781

1-sigma variation

Unit

Desc. Node-Earth Sep.

Value

1.046491

1-sigma variation

Unit

MOID

Value

0.010167

1-sigma variation

Unit

Orbit Period

Value

929.6556

1-sigma variation

Unit

U parameter

Value

8.4

1-sigma variation

Unit

Covariance Matrix

	a	e	i	Ω	ω	M
a	2.51000E-5	6.99962E-6	3.60944E-5	2.37525E-6	-9.44014E-6	-4.27034E-3
e	6.99962E-6	1.95200E-6	1.00655E-5	6.62146E-7	-2.62695E-6	-1.19087E-3
i	3.60944E-5	1.00655E-5	5.19061E-5	3.41603E-6	-1.36032E-5	-6.14084E-3
Ω	2.37525E-6	6.62146E-7	3.41603E-6	2.28764E-7	-9.59244E-7	-4.04098E-4
ω	-9.44014E-6	-2.62695E-6	-1.36032E-5	-9.59244E-7	5.07514E-6	1.60583E-3
M	-4.27034E-3	-1.19087E-3	-6.14084E-3	-4.04098E-4	1.60583E-3	7.26525E-1

Date of computation: 2025-02-19 13:28 UTC

Note: The ASCII file is in a format suitable for Orbfit input.

Download ASCII file:

Physical properties

Rotation Period
Quality
Amplitude
Rotation Direction
Spinvector L
Spinvector B

Rotational properties

Value

Unit

Source

Rotation Period

Value

Unit

Source

[-]

Quality

Value

Unit

Source

[-]

Amplitude

Value

Unit

mag

Source

[-]

Rotation Direction

Value

Unit

Source

[-]

Spinvector L

Value

Unit

Source

[-]

Spinvector B

Value

Unit

Source

[-]

Taxonomy
Taxonomy (all)

Taxonomy

Value

Unit

Source

Taxonomy

Value

Unit

Source

[-]

Taxonomy (all)

Value

Unit

Source

[-]

Absolute Magnitude (H)
Slope Parameter (G)

H / G

Value

Unit

Source

Absolute Magnitude (H)

Value

27.321

Unit

mag

Source

[1]

Slope Parameter (G)

Value

0.15**

Unit

mag

Source

[1]

Albedo
Diameter

Size and albedo

Value

Unit

Source

Albedo

Value

0.05 - 0.25

Unit

Source

[2]

Diameter

Value

9 - 20*

Unit

Source

[2]

Color Index Information

Color Index Information

Value

Unit

Source

Color Index Information

Value

Unit

mag

Source

[-]

Sightings

Sightings

Value

Unit

Source

Sightings

Value

Unit

Source

[-]

Download this part as:

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	Estimation	Estimated from absolute magnitude

Observational Information

Arc Length
Unobserved
Normalized RMS of residuals

Arc Information

Value

Unit

Source

Arc Length

Value

Unit

Source

[1]

Unobserved

Value

597

Unit

Source

[1]

Normalized RMS of residuals

Value

0.571565

Unit

Source

[1]

Astrometry Summary

First Observation
Last Observation
Total Optical Observations (Discarded)

Optical

Value

Unit

Source

First Observation

Value

2023-09-14.429949

Unit

Source

[2]

Last Observation

Value

2023-09-20.223511

Unit

Source

[2]

Total Optical Observations (Discarded)

Value

20 (0)

Unit

Source

[1]

Radar Summary

First Observation
Last Observation
Delay (Discarded)
Doppler (Discarded)
Total Optical Observations (Discarded)

Radar

Value

Unit

Source

First Observation

Value

Unit

Source

[-]

Last Observation

Value

Unit

Source

[-]

Delay (Discarded)

Value

0 (0)

Unit

Source

[-]

Doppler (Discarded)

Value

0 (0)

Unit

Source

[-]

Total Radar Observations (Discarded)

Value

0 (0)

Unit

Source

[-]

Note: The ASCII file is in a format suitable for Orbfit input.

Sources

No.	Name	Additional
[1]	ESA Aegis	ESA orbit determination and impact monitoring system
[2]	MPC	Minor Planet Center: https://www.minorplanetcenter.net

Computation parameters

As seen from:

Initial Date: *

Final Date: *

Output option:

One line per time step

Time step:*

* - these fields are required

Close Approaches for 2023SY1 from 1950 to 2125

Body	Date in UTC	Time uncert. in min	Nominal distance in au	Min. possible distance in au	Distance uncert. in au
EARTH	1959-12-18 02:48	> 1 mo	0.0587539	0.0560439	0.0928182
MARS	1962-03-13 12:54	> 1 w	0.0474699	0.0071385	0.2571427
EARTH	1982-12-29 23:58	> 1 w	0.1326479	0.0571488	0.2920628
EARTH	2000-09-17 06:38	> 1 mo	0.1027825	0.0066116	0.5480776
EARTH	2023-09-28 08:20	< 1 min	0.0185195	0.0183822	0.0000458
EARTH	2051-09-30 16:57	> 1 mo	0.0119569	0.0107855	0.2312443
EARTH	2056-12-31 15:44	> 1 mo	0.1429707	0.0560927	6.6436915
EARTH	2084-09-15 15:23	> 1 mo	0.1367206	0.0076643	35.6760795
EARTH	2089-12-15 22:45	> 1 mo	0.0539795	0.0538203	2.1557505
EARTH	2122-10-28 06:21	> 1 mo	0.0698929	0.0071417	55.5484383

Download as:

Stationary Points

Ecc. an. ast.	Ecc. an. Earth	Distance in au	Classification
336.02125101	266.51804612	0.01010854	MINIMUM
20.40379642	341.39086395	0.05528633	MINIMUM
0.81355783	308.42136976	0.07949697	SADDLE
179.60000540	125.66640657	1.79766932	SADDLE
358.58001111	124.58278926	1.93078950	SADDLE
179.48273889	305.60455108	3.79463243	MAXIMUM

Download:

MOID Plots

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