메타데이터
| 항목 |
값 |
| Designation |
P/2023 Y2 (Gibbs) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2023-08-09T20:11:11.523840Z |
| Orbit solution date (soln_date, UTC) |
2025-01-02T20:12:44Z |
| Obs used |
90 |
| NEO |
- |
| M1 |
11.800 |
| K1 |
17.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-12-17T11:22:10.185600Z |
| Discovery magnitude (MPC) |
19.40 G |
| Discovery observatory (MPC) |
G96 · Mt. Lemmon Survey |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2023-12-10.0000000 |
| e |
0.39215548 |
| q (au) |
2.275929 |
| a (au) |
3.744261 |
| i (deg) |
6.992785 |
| Ω (om, deg) |
79.230881 |
| ω (w, deg) |
16.802088 |
| M (ma, deg) |
16.618047 |
밝기
산란 + 전체 선형
$$
M_a = (11.969 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.969 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| k |
1.000 |
| δ90 |
10.000 |
| 파라미터 |
기호 |
범위 |
설명 |
| 태양·지구거리 1 AU에서의 절대등급 |
H0 |
-5 to 20 |
혜성의 고유 밝기 |
| 광도 기울기 파라미터 |
n |
2 to 6 |
태양거리 변화에 따른 밝기 변화율 |
| 전방 산란 비대칭 계수 |
gf |
0.8 to 1 |
전방 산란의 강도 |
| 후방 산란 비대칭 계수 |
gb |
-1 to -0.5 |
후방 산란의 강도 |
| 분할 계수 |
k |
0.8 to 1 |
전·후방 산란 기여도 비율 |
| 먼지/가스 밝기 비 |
δ90 |
1 to 10 |
코마에서 먼지 산란 대비 가스 방출의 상대 기여 |
참고: EPSC-DPS2025-160
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
17:30:11.76 |
-22:16:43.3 |
HIP 85526 |
27.64 |
| 2026-03-26 12:00 |
17:30:15.55 |
-22:16:56.8 |
HIP 85526 |
28.16 |
| 2026-03-27 00:00 |
17:30:19.12 |
-22:17:10.2 |
HIP 85526 |
28.67 |
| 2026-03-27 12:00 |
17:30:22.47 |
-22:17:23.5 |
HIP 85526 |
29.15 |
| 2026-03-28 00:00 |
17:30:25.60 |
-22:17:36.7 |
HIP 85526 |
29.60 |
| 2026-03-28 12:00 |
17:30:28.50 |
-22:17:49.7 |
HIP 85526 |
30.02 |
| 2026-03-29 00:00 |
17:30:31.19 |
-22:18:02.7 |
HIP 85526 |
30.41 |
| 2026-03-29 12:00 |
17:30:33.65 |
-22:18:15.5 |
HIP 85526 |
30.77 |
| 2026-03-30 00:00 |
17:30:35.90 |
-22:18:28.2 |
HIP 85526 |
31.10 |
| 2026-03-30 12:00 |
17:30:37.92 |
-22:18:40.9 |
HIP 85526 |
31.39 |
| 2026-03-31 00:00 |
17:30:39.72 |
-22:18:53.4 |
HIP 85526 |
31.64 |
| 2026-03-31 12:00 |
17:30:41.29 |
-22:19:05.8 |
HIP 85526 |
31.85 |
| 2026-04-01 00:00 |
17:30:42.65 |
-22:19:18.0 |
HIP 85526 |
32.02 |
| 2026-04-01 12:00 |
17:30:43.77 |
-22:19:30.2 |
HIP 85526 |
32.15 |
| 2026-04-02 00:00 |
17:30:44.68 |
-22:19:42.3 |
HIP 85526 |
32.24 |
| 2026-04-02 12:00 |
17:30:45.36 |
-22:19:54.3 |
HIP 85526 |
32.28 |
| 2026-04-03 00:00 |
17:30:45.81 |
-22:20:06.1 |
HIP 85526 |
32.29 |
| 2026-04-03 12:00 |
17:30:46.04 |
-22:20:17.9 |
HIP 85526 |
32.24 |
| 2026-04-04 00:00 |
17:30:46.05 |
-22:20:29.5 |
HIP 85526 |
32.16 |
| 2026-04-04 12:00 |
17:30:45.83 |
-22:20:41.1 |
HIP 85526 |
32.03 |
| 2026-04-05 00:00 |
17:30:45.38 |
-22:20:52.5 |
HIP 85526 |
31.85 |
| 2026-04-05 12:00 |
17:30:44.70 |
-22:21:03.8 |
HIP 85526 |
31.63 |
| 2026-04-06 00:00 |
17:30:43.80 |
-22:21:15.0 |
HIP 85526 |
31.36 |
| 2026-04-06 12:00 |
17:30:42.68 |
-22:21:26.2 |
HIP 85526 |
31.04 |
| 2026-04-07 00:00 |
17:30:41.32 |
-22:21:37.2 |
HIP 85526 |
30.68 |
| 2026-04-07 12:00 |
17:30:39.74 |
-22:21:48.1 |
HIP 85526 |
30.27 |
| 2026-04-08 00:00 |
17:30:37.93 |
-22:21:58.9 |
HIP 85526 |
29.82 |
| 2026-04-08 12:00 |
17:30:35.89 |
-22:22:09.6 |
HIP 85526 |
29.31 |
| 2026-04-09 00:00 |
17:30:33.62 |
-22:22:20.2 |
HIP 85526 |
28.76 |
| 2026-04-09 12:00 |
17:30:31.13 |
-22:22:30.6 |
HIP 85526 |
28.17 |
| 2026-04-10 00:00 |
17:30:28.40 |
-22:22:41.0 |
HIP 85526 |
27.53 |
| 2026-04-10 12:00 |
17:30:25.45 |
-22:22:51.3 |
HIP 85526 |
26.84 |
| 2026-04-11 00:00 |
17:30:22.27 |
-22:23:01.4 |
HIP 85526 |
26.11 |
| 2026-04-11 12:00 |
17:30:18.86 |
-22:23:11.5 |
HIP 85526 |
25.33 |
| 2026-04-12 00:00 |
17:30:15.22 |
-22:23:21.4 |
HIP 85526 |
24.51 |
| 2026-04-12 12:00 |
17:30:11.36 |
-22:23:31.2 |
HIP 85526 |
23.65 |
| 2026-04-13 00:00 |
17:30:07.26 |
-22:23:41.0 |
HIP 85526 |
22.74 |
| 2026-04-13 12:00 |
17:30:02.94 |
-22:23:50.6 |
HIP 85526 |
21.80 |
| 2026-04-14 00:00 |
17:29:58.39 |
-22:24:00.1 |
HIP 85526 |
20.81 |
| 2026-04-14 12:00 |
17:29:53.61 |
-22:24:09.5 |
HIP 85526 |
19.80 |
| 2026-04-15 00:00 |
17:29:48.60 |
-22:24:18.8 |
HIP 85526 |
18.75 |
| 2026-04-15 12:00 |
17:29:43.37 |
-22:24:27.9 |
HIP 85526 |
17.67 |
| 2026-04-16 00:00 |
17:29:37.91 |
-22:24:37.0 |
HIP 85526 |
16.57 |