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) |
| 2026-06-01 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 |
| 2026-06-02 12:00 |
10:28:12.77 |
+18:17:48.4 |
HIP 51318 |
16.35 |
| 2026-06-03 00:00 |
10:28:19.50 |
+18:15:41.6 |
HIP 51318 |
13.71 |
| 2026-06-03 12:00 |
10:28:26.36 |
+18:13:34.2 |
HIP 51318 |
11.04 |
| 2026-06-04 00:00 |
10:28:33.36 |
+18:11:26.3 |
HIP 51318 |
8.34 |
| 2026-06-04 12:00 |
10:28:40.50 |
+18:09:18.0 |
HIP 51318 |
5.61 |
| 2026-06-05 00:00 |
10:28:47.78 |
+18:07:09.0 |
HIP 51318 |
2.87 |
| 2026-06-05 12:00 |
10:28:55.19 |
+18:04:59.6 |
HIP 51318 |
0.41 |
| 2026-06-06 00:00 |
10:29:02.74 |
+18:02:49.7 |
HIP 51318 |
2.78 |
| 2026-06-06 12:00 |
10:29:10.43 |
+18:00:39.2 |
HIP 51318 |
5.61 |
| 2026-06-07 00:00 |
10:29:18.25 |
+17:58:28.3 |
HIP 51318 |
8.47 |
| 2026-06-07 12:00 |
10:29:26.20 |
+17:56:16.8 |
HIP 51318 |
11.36 |
| 2026-06-08 00:00 |
10:29:34.29 |
+17:54:04.9 |
HIP 51318 |
14.28 |
| 2026-06-08 12:00 |
10:29:42.51 |
+17:51:52.4 |
HIP 51318 |
17.22 |
| 2026-06-09 00:00 |
10:29:50.86 |
+17:49:39.5 |
HIP 51318 |
20.19 |
| 2026-06-09 12:00 |
10:29:59.34 |
+17:47:26.0 |
HIP 51318 |
23.20 |
| 2026-06-10 00:00 |
10:30:07.95 |
+17:45:12.1 |
HIP 51318 |
26.22 |
| 2026-06-10 12:00 |
10:30:16.69 |
+17:42:57.7 |
HIP 51318 |
29.28 |
| 2026-06-11 00:00 |
10:30:25.56 |
+17:40:42.9 |
HIP 51579 |
30.24 |
| 2026-06-11 12:00 |
10:30:34.56 |
+17:38:27.5 |
HIP 51579 |
30.11 |
| 2026-06-12 00:00 |
10:30:43.68 |
+17:36:11.7 |
HIP 51579 |
30.28 |
| 2026-06-12 12:00 |
10:30:52.93 |
+17:33:55.5 |
HIP 51579 |
30.77 |
| 2026-06-13 00:00 |
10:31:02.31 |
+17:31:38.7 |
HIP 51579 |
31.56 |
| 2026-06-13 12:00 |
10:31:11.81 |
+17:29:21.5 |
HIP 51677 |
32.35 |
| 2026-06-14 00:00 |
10:31:21.44 |
+17:27:03.9 |
HIP 51677 |
30.56 |
| 2026-06-14 12:00 |
10:31:31.19 |
+17:24:45.8 |
HIP 51677 |
29.00 |
| 2026-06-15 00:00 |
10:31:41.06 |
+17:22:27.2 |
HIP 51677 |
27.71 |
| 2026-06-15 12:00 |
10:31:51.06 |
+17:20:08.3 |
HIP 51677 |
26.75 |
| 2026-06-16 00:00 |
10:32:01.17 |
+17:17:48.8 |
HIP 51677 |
26.16 |
| 2026-06-16 12:00 |
10:32:11.41 |
+17:15:29.0 |
HIP 51677 |
25.98 |
| 2026-06-17 00:00 |
10:32:21.76 |
+17:13:08.7 |
HIP 51677 |
26.22 |
| 2026-06-17 12:00 |
10:32:32.23 |
+17:10:48.0 |
HIP 51677 |
26.89 |
| 2026-06-18 00:00 |
10:32:42.82 |
+17:08:26.9 |
HIP 51677 |
27.96 |
| 2026-06-18 12:00 |
10:32:53.53 |
+17:06:05.3 |
HIP 51677 |
29.40 |
| 2026-06-19 00:00 |
10:33:04.35 |
+17:03:43.4 |
HIP 51677 |
31.16 |
| 2026-06-19 12:00 |
10:33:15.28 |
+17:01:21.0 |
HIP 51677 |
33.20 |
| 2026-06-20 00:00 |
10:33:26.33 |
+16:58:58.2 |
HIP 51677 |
35.49 |
| 2026-06-20 12:00 |
10:33:37.49 |
+16:56:35.1 |
HIP 51677 |
37.98 |
| 2026-06-21 00:00 |
10:33:48.77 |
+16:54:11.5 |
HIP 51677 |
40.64 |
| 2026-06-21 12:00 |
10:34:00.15 |
+16:51:47.6 |
HIP 51677 |
43.45 |
| 2026-06-22 00:00 |
10:34:11.64 |
+16:49:23.3 |
HIP 51677 |
46.38 |