메타데이터
| 항목 |
값 |
| Designation |
C/2023 Q1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2024-12-01T03:06:18.527040Z |
| Orbit solution date (soln_date, UTC) |
2025-09-30T13:39:24Z |
| Obs used |
1450 |
| NEO |
- |
| M1 |
11.200 |
| K1 |
9.250 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2023-08-20T13:18:30.182400Z |
| Discovery magnitude (MPC) |
22.04 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2024-12-04.0000000 |
| e |
1.00529337 |
| q (au) |
2.575719 |
| a (au) |
-486.593364 |
| i (deg) |
36.643014 |
| Ω (om, deg) |
7.131719 |
| ω (w, deg) |
84.409436 |
| M (ma, deg) |
0.000264 |
밝기
산란 + 전체 선형
$$
M_a = (10.831 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.831 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.794 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2023-07-25 |
2023-11-14 |
+13.9933 |
-9.563 |
| 2023-11-14 |
2024-07-30 |
+1.1915 |
-1.285 |
| 2024-07-30 |
2024-12-01 |
-28.2334 |
+12.220 |
| 2024-12-01 |
2025-05-15 |
+2.7850 |
-1.351 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
12:34:34.93 |
-08:02:42.9 |
HIP 61378 |
1.85 |
| 2026-09-20 12:00 |
12:34:51.75 |
-08:05:17.9 |
HIP 61378 |
3.08 |
| 2026-09-21 00:00 |
12:35:08.57 |
-08:07:53.0 |
HIP 61378 |
7.98 |
| 2026-09-21 12:00 |
12:35:25.40 |
-08:10:28.1 |
HIP 61378 |
12.87 |
| 2026-09-22 00:00 |
12:35:42.23 |
-08:13:03.2 |
HIP 61378 |
17.78 |
| 2026-09-22 12:00 |
12:35:59.07 |
-08:15:38.3 |
HIP 61599 |
20.47 |
| 2026-09-23 00:00 |
12:36:15.91 |
-08:18:13.5 |
HIP 61599 |
16.17 |
| 2026-09-23 12:00 |
12:36:32.74 |
-08:20:48.7 |
HIP 61599 |
12.32 |
| 2026-09-24 00:00 |
12:36:49.59 |
-08:23:23.9 |
HIP 61599 |
9.51 |
| 2026-09-24 12:00 |
12:37:06.43 |
-08:25:59.2 |
HIP 61599 |
8.77 |
| 2026-09-25 00:00 |
12:37:23.27 |
-08:28:34.4 |
HIP 61599 |
10.57 |
| 2026-09-25 12:00 |
12:37:40.11 |
-08:31:09.7 |
HIP 61599 |
13.95 |
| 2026-09-26 00:00 |
12:37:56.95 |
-08:33:45.0 |
HIP 61599 |
18.04 |
| 2026-09-26 12:00 |
12:38:13.79 |
-08:36:20.3 |
HIP 61599 |
22.46 |
| 2026-09-27 00:00 |
12:38:30.63 |
-08:38:55.6 |
HIP 61797 |
21.52 |
| 2026-09-27 12:00 |
12:38:47.46 |
-08:41:30.9 |
HIP 61797 |
18.26 |
| 2026-09-28 00:00 |
12:39:04.30 |
-08:44:06.2 |
HIP 61797 |
15.88 |
| 2026-09-28 12:00 |
12:39:21.13 |
-08:46:41.5 |
HIP 61797 |
14.78 |
| 2026-09-29 00:00 |
12:39:37.95 |
-08:49:16.9 |
HIP 61797 |
15.27 |
| 2026-09-29 12:00 |
12:39:54.77 |
-08:51:52.2 |
HIP 61797 |
17.19 |
| 2026-09-30 00:00 |
12:40:11.59 |
-08:54:27.5 |
HIP 61797 |
20.15 |
| 2026-09-30 12:00 |
12:40:28.40 |
-08:57:02.8 |
HIP 61903 |
20.32 |
| 2026-10-01 00:00 |
12:40:45.20 |
-08:59:38.1 |
HIP 61903 |
16.19 |
| 2026-10-01 12:00 |
12:41:02.00 |
-09:02:13.4 |
HIP 61903 |
12.63 |
| 2026-10-02 00:00 |
12:41:18.79 |
-09:04:48.7 |
HIP 61903 |
10.22 |
| 2026-10-02 12:00 |
12:41:35.58 |
-09:07:23.9 |
HIP 61903 |
9.85 |
| 2026-10-03 00:00 |
12:41:52.35 |
-09:09:59.1 |
HIP 61903 |
11.72 |
| 2026-10-03 12:00 |
12:42:09.12 |
-09:12:34.4 |
HIP 61903 |
15.01 |
| 2026-10-04 00:00 |
12:42:25.88 |
-09:15:09.6 |
HIP 61903 |
19.00 |
| 2026-10-04 12:00 |
12:42:42.63 |
-09:17:44.7 |
HIP 61903 |
23.32 |
| 2026-10-05 00:00 |
12:42:59.36 |
-09:20:19.9 |
HIP 61903 |
27.82 |
| 2026-10-05 12:00 |
12:43:16.09 |
-09:22:55.0 |
HIP 62113 |
24.55 |
| 2026-10-06 00:00 |
12:43:32.81 |
-09:25:30.0 |
HIP 62113 |
20.98 |
| 2026-10-06 12:00 |
12:43:49.51 |
-09:28:05.1 |
HIP 62113 |
18.03 |
| 2026-10-07 00:00 |
12:44:06.20 |
-09:30:40.1 |
HIP 62113 |
16.04 |
| 2026-10-07 12:00 |
12:44:22.87 |
-09:33:15.0 |
HIP 62113 |
15.39 |
| 2026-10-08 00:00 |
12:44:39.54 |
-09:35:49.9 |
HIP 62113 |
16.22 |
| 2026-10-08 12:00 |
12:44:56.18 |
-09:38:24.7 |
HIP 62113 |
18.34 |
| 2026-10-09 00:00 |
12:45:12.82 |
-09:40:59.5 |
HIP 62113 |
21.37 |
| 2026-10-09 12:00 |
12:45:29.43 |
-09:43:34.3 |
HIP 62113 |
24.97 |
| 2026-10-10 00:00 |
12:45:46.03 |
-09:46:08.9 |
HIP 62173 |
26.86 |
| 2026-10-10 12:00 |
12:46:02.61 |
-09:48:43.5 |
HIP 62173 |
28.38 |
| 2026-10-11 00:00 |
12:46:19.17 |
-09:51:18.1 |
HIP 62465 |
28.09 |