메타데이터
| 항목 |
값 |
| Designation |
237P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2023-05-14T13:55:38.369280Z |
| Orbit solution date (soln_date, UTC) |
2025-02-13T10:11:19Z |
| Obs used |
2268 |
| NEO |
- |
| M1 |
7.600 |
| K1 |
21.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2021-12-09.0000000 |
| e |
0.43436596 |
| q (au) |
1.986663 |
| a (au) |
3.512276 |
| i (deg) |
14.014625 |
| Ω (om, deg) |
245.378783 |
| ω (w, deg) |
25.235831 |
| M (ma, deg) |
281.901559 |
밝기
산란 + 전체 선형
$$
M_a = (8.535 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.535 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2022-02-04 |
2023-05-14 |
+9.5015 |
-3.783 |
| 2023-05-14 |
2023-10-17 |
+15.2071 |
-5.277 |
| 2023-10-17 |
2024-11-21 |
+3.9569 |
-1.564 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
06:17:35.52 |
+18:39:05.7 |
HIP 29856 |
5.42 |
| 2026-07-29 12:00 |
06:18:00.13 |
+18:38:20.1 |
HIP 29856 |
11.22 |
| 2026-07-30 00:00 |
06:18:24.67 |
+18:37:34.1 |
HIP 29986 |
12.83 |
| 2026-07-30 12:00 |
06:18:49.16 |
+18:36:47.6 |
HIP 29986 |
11.15 |
| 2026-07-31 00:00 |
06:19:13.58 |
+18:36:00.8 |
HIP 29986 |
12.33 |
| 2026-07-31 12:00 |
06:19:37.94 |
+18:35:13.6 |
HIP 29986 |
15.74 |
| 2026-08-01 00:00 |
06:20:02.23 |
+18:34:26.0 |
HIP 29986 |
20.26 |
| 2026-08-01 12:00 |
06:20:26.46 |
+18:33:38.0 |
HIP 29986 |
25.30 |
| 2026-08-02 00:00 |
06:20:50.62 |
+18:32:49.7 |
HIP 30312 |
28.76 |
| 2026-08-02 12:00 |
06:21:14.71 |
+18:32:00.9 |
HIP 30312 |
24.90 |
| 2026-08-03 00:00 |
06:21:38.74 |
+18:31:11.7 |
HIP 30312 |
21.90 |
| 2026-08-03 12:00 |
06:22:02.70 |
+18:30:22.2 |
HIP 30312 |
20.15 |
| 2026-08-04 00:00 |
06:22:26.59 |
+18:29:32.3 |
HIP 30312 |
19.96 |
| 2026-08-04 12:00 |
06:22:50.41 |
+18:28:42.0 |
HIP 30428 |
14.55 |
| 2026-08-05 00:00 |
06:23:14.16 |
+18:27:51.3 |
HIP 30428 |
8.87 |
| 2026-08-05 12:00 |
06:23:37.84 |
+18:27:00.2 |
HIP 30428 |
3.27 |
| 2026-08-06 00:00 |
06:24:01.45 |
+18:26:08.8 |
HIP 30428 |
2.68 |
| 2026-08-06 12:00 |
06:24:24.98 |
+18:25:17.0 |
HIP 30428 |
8.22 |
| 2026-08-07 00:00 |
06:24:48.45 |
+18:24:24.8 |
HIP 30428 |
13.83 |
| 2026-08-07 12:00 |
06:25:11.83 |
+18:23:32.2 |
HIP 30428 |
19.44 |
| 2026-08-08 00:00 |
06:25:35.14 |
+18:22:39.3 |
HIP 30630 |
24.26 |
| 2026-08-08 12:00 |
06:25:58.38 |
+18:21:46.0 |
HIP 30630 |
23.84 |
| 2026-08-09 00:00 |
06:26:21.53 |
+18:20:52.3 |
HIP 30749 |
20.20 |
| 2026-08-09 12:00 |
06:26:44.61 |
+18:19:58.3 |
HIP 30749 |
14.82 |
| 2026-08-10 00:00 |
06:27:07.61 |
+18:19:03.9 |
HIP 30749 |
9.66 |
| 2026-08-10 12:00 |
06:27:30.53 |
+18:18:09.1 |
HIP 30749 |
5.30 |
| 2026-08-11 00:00 |
06:27:53.36 |
+18:17:14.0 |
HIP 30749 |
4.86 |
| 2026-08-11 12:00 |
06:28:16.12 |
+18:16:18.5 |
HIP 30749 |
8.90 |
| 2026-08-12 00:00 |
06:28:38.79 |
+18:15:22.7 |
HIP 30801 |
13.67 |
| 2026-08-12 12:00 |
06:29:01.38 |
+18:14:26.5 |
HIP 30801 |
17.13 |
| 2026-08-13 00:00 |
06:29:23.88 |
+18:13:29.9 |
HIP 30801 |
21.43 |
| 2026-08-13 12:00 |
06:29:46.30 |
+18:12:33.1 |
HIP 30801 |
26.13 |
| 2026-08-14 00:00 |
06:30:08.63 |
+18:11:35.8 |
HIP 30890 |
30.97 |
| 2026-08-14 12:00 |
06:30:30.87 |
+18:10:38.3 |
HIP 30890 |
33.16 |
| 2026-08-15 00:00 |
06:30:53.02 |
+18:09:40.4 |
HIP 31158 |
30.41 |
| 2026-08-15 12:00 |
06:31:15.09 |
+18:08:42.1 |
HIP 31158 |
26.38 |
| 2026-08-16 00:00 |
06:31:37.06 |
+18:07:43.6 |
HIP 31158 |
22.90 |
| 2026-08-16 12:00 |
06:31:58.94 |
+18:06:44.6 |
HIP 31158 |
20.23 |
| 2026-08-17 00:00 |
06:32:20.73 |
+18:05:45.4 |
HIP 31158 |
18.71 |
| 2026-08-17 12:00 |
06:32:42.43 |
+18:04:45.9 |
HIP 31158 |
18.60 |
| 2026-08-18 00:00 |
06:33:04.03 |
+18:03:46.0 |
HIP 31158 |
19.91 |
| 2026-08-18 12:00 |
06:33:25.54 |
+18:02:45.8 |
HIP 31158 |
22.38 |
| 2026-08-19 00:00 |
06:33:46.96 |
+18:01:45.3 |
HIP 31435 |
20.51 |