메타데이터
| 항목 |
값 |
| Designation |
P/2021 P3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2021-05-31T00:59:23.956800Z |
| Orbit solution date (soln_date, UTC) |
2024-04-13T16:42:58Z |
| Obs used |
104 |
| NEO |
- |
| M1 |
13.700 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2021-08-11T14:01:45.033600Z |
| Discovery magnitude (MPC) |
20.63 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2021-09-09.0000000 |
| e |
0.34046368 |
| q (au) |
2.916288 |
| a (au) |
4.421724 |
| i (deg) |
27.156308 |
| Ω (om, deg) |
358.237092 |
| ω (w, deg) |
334.236786 |
| M (ma, deg) |
10.701892 |
밝기
산란 + 전체 선형
$$
M_a = (14.341 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.341 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.755 |
| k |
0.800 |
| 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) |
| 2026-05-12 00:00 |
10:25:46.66 |
+19:39:09.7 |
HIP 51067 |
15.62 |
| 2026-05-12 12:00 |
10:25:46.66 |
+19:37:30.6 |
HIP 51067 |
14.03 |
| 2026-05-13 00:00 |
10:25:46.84 |
+19:35:50.7 |
HIP 51067 |
12.43 |
| 2026-05-13 12:00 |
10:25:47.18 |
+19:34:10.0 |
HIP 51067 |
10.83 |
| 2026-05-14 00:00 |
10:25:47.70 |
+19:32:28.6 |
HIP 51067 |
9.23 |
| 2026-05-14 12:00 |
10:25:48.38 |
+19:30:46.4 |
HIP 51067 |
7.64 |
| 2026-05-15 00:00 |
10:25:49.23 |
+19:29:03.5 |
HIP 51067 |
6.07 |
| 2026-05-15 12:00 |
10:25:50.24 |
+19:27:19.8 |
HIP 51067 |
4.59 |
| 2026-05-16 00:00 |
10:25:51.42 |
+19:25:35.4 |
HIP 51067 |
3.33 |
| 2026-05-16 12:00 |
10:25:52.77 |
+19:23:50.3 |
HIP 51067 |
2.67 |
| 2026-05-17 00:00 |
10:25:54.29 |
+19:22:04.5 |
HIP 51067 |
3.05 |
| 2026-05-17 12:00 |
10:25:55.97 |
+19:20:18.0 |
HIP 51067 |
4.24 |
| 2026-05-18 00:00 |
10:25:57.82 |
+19:18:30.8 |
HIP 51067 |
5.77 |
| 2026-05-18 12:00 |
10:25:59.83 |
+19:16:42.8 |
HIP 51067 |
7.44 |
| 2026-05-19 00:00 |
10:26:02.00 |
+19:14:54.2 |
HIP 51067 |
9.20 |
| 2026-05-19 12:00 |
10:26:04.34 |
+19:13:04.9 |
HIP 51067 |
11.01 |
| 2026-05-20 00:00 |
10:26:06.84 |
+19:11:14.9 |
HIP 51067 |
12.86 |
| 2026-05-20 12:00 |
10:26:09.50 |
+19:09:24.2 |
HIP 51067 |
14.74 |
| 2026-05-21 00:00 |
10:26:12.32 |
+19:07:32.8 |
HIP 51067 |
16.66 |
| 2026-05-21 12:00 |
10:26:15.30 |
+19:05:40.8 |
HIP 51067 |
18.60 |
| 2026-05-22 00:00 |
10:26:18.44 |
+19:03:48.2 |
HIP 51067 |
20.57 |
| 2026-05-22 12:00 |
10:26:21.74 |
+19:01:54.8 |
HIP 51161 |
21.96 |
| 2026-05-23 00:00 |
10:26:25.19 |
+19:00:00.9 |
HIP 51161 |
23.40 |
| 2026-05-23 12:00 |
10:26:28.81 |
+18:58:06.3 |
HIP 51161 |
24.92 |
| 2026-05-24 00:00 |
10:26:32.58 |
+18:56:11.0 |
HIP 51264 |
25.02 |
| 2026-05-24 12:00 |
10:26:36.50 |
+18:54:15.2 |
HIP 51264 |
24.06 |
| 2026-05-25 00:00 |
10:26:40.58 |
+18:52:18.7 |
HIP 51264 |
23.22 |
| 2026-05-25 12:00 |
10:26:44.81 |
+18:50:21.6 |
HIP 51264 |
22.52 |
| 2026-05-26 00:00 |
10:26:49.20 |
+18:48:23.9 |
HIP 51241 |
20.88 |
| 2026-05-26 12:00 |
10:26:53.73 |
+18:46:25.6 |
HIP 51241 |
18.84 |
| 2026-05-27 00:00 |
10:26:58.42 |
+18:44:26.6 |
HIP 51241 |
16.82 |
| 2026-05-27 12:00 |
10:27:03.26 |
+18:42:27.1 |
HIP 51241 |
14.83 |
| 2026-05-28 00:00 |
10:27:08.25 |
+18:40:27.0 |
HIP 51241 |
12.91 |
| 2026-05-28 12:00 |
10:27:13.39 |
+18:38:26.3 |
HIP 51241 |
11.10 |
| 2026-05-29 00:00 |
10:27:18.67 |
+18:36:25.1 |
HIP 51241 |
9.50 |
| 2026-05-29 12:00 |
10:27:24.10 |
+18:34:23.2 |
HIP 51241 |
8.25 |
| 2026-05-30 00:00 |
10:27:29.68 |
+18:32:20.8 |
HIP 51241 |
7.54 |
| 2026-05-30 12:00 |
10:27:35.41 |
+18:30:17.8 |
HIP 51241 |
7.57 |
| 2026-05-31 00:00 |
10:27:41.28 |
+18:28:14.3 |
HIP 51241 |
8.35 |
| 2026-05-31 12:00 |
10:27:47.29 |
+18:26:10.2 |
HIP 51241 |
9.71 |
| 2026-06-01 00:00 |
10:27:53.45 |
+18:24:05.6 |
HIP 51241 |
11.48 |
| 2026-06-01 12:00 |
10:27:59.75 |
+18:22:00.4 |
HIP 51241 |
13.50 |
| 2026-06-02 00:00 |
10:28:06.19 |
+18:19:54.6 |
HIP 51241 |
15.70 |