메타데이터
| 항목 |
값 |
| Designation |
C/2014 B1 (Schwartz) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2017-09-10T20:55:53.734080Z |
| Orbit solution date (soln_date, UTC) |
2022-04-30T03:12:27Z |
| Obs used |
1276 |
| NEO |
- |
| M1 |
6.200 |
| K1 |
6.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2018-02-16.0000000 |
| e |
1.00321505 |
| q (au) |
9.556680 |
| a (au) |
-2972.479051 |
| i (deg) |
28.375526 |
| Ω (om, deg) |
161.394483 |
| ω (w, deg) |
345.859143 |
| M (ma, deg) |
0.000962 |
밝기
산란 + 전체 선형
$$
M_a = (-2.963 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
-2.963 |
| n |
6.000 |
| gf |
0.902 |
| gb |
-0.937 |
| k |
1.000 |
| δ90 |
3.984 |
| 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 |
| 2014-01-28 |
2017-06-16 |
+8.9133 |
-9.153 |
| 2017-11-15 |
2022-04-24 |
+7.9408 |
-8.013 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
15:56:13.13 |
+09:05:57.6 |
HIP 77966 |
14.74 |
| 2026-05-12 12:00 |
15:56:08.30 |
+09:06:21.0 |
HIP 77966 |
13.52 |
| 2026-05-13 00:00 |
15:56:03.46 |
+09:06:43.9 |
HIP 77966 |
12.30 |
| 2026-05-13 12:00 |
15:55:58.61 |
+09:07:06.5 |
HIP 77966 |
11.10 |
| 2026-05-14 00:00 |
15:55:53.76 |
+09:07:28.6 |
HIP 77966 |
9.91 |
| 2026-05-14 12:00 |
15:55:48.90 |
+09:07:50.4 |
HIP 77966 |
8.74 |
| 2026-05-15 00:00 |
15:55:44.03 |
+09:08:11.8 |
HIP 77966 |
7.61 |
| 2026-05-15 12:00 |
15:55:39.16 |
+09:08:32.7 |
HIP 77966 |
6.51 |
| 2026-05-16 00:00 |
15:55:34.27 |
+09:08:53.3 |
HIP 77966 |
5.50 |
| 2026-05-16 12:00 |
15:55:29.39 |
+09:09:13.5 |
HIP 77966 |
4.60 |
| 2026-05-17 00:00 |
15:55:24.50 |
+09:09:33.3 |
HIP 77966 |
3.92 |
| 2026-05-17 12:00 |
15:55:19.60 |
+09:09:52.6 |
HIP 77966 |
3.56 |
| 2026-05-18 00:00 |
15:55:14.71 |
+09:10:11.6 |
HIP 77966 |
3.64 |
| 2026-05-18 12:00 |
15:55:09.80 |
+09:10:30.1 |
HIP 77966 |
4.11 |
| 2026-05-19 00:00 |
15:55:04.90 |
+09:10:48.3 |
HIP 77966 |
4.87 |
| 2026-05-19 12:00 |
15:55:00.00 |
+09:11:06.0 |
HIP 77917 |
5.49 |
| 2026-05-20 00:00 |
15:54:55.09 |
+09:11:23.3 |
HIP 77917 |
4.48 |
| 2026-05-20 12:00 |
15:54:50.18 |
+09:11:40.2 |
HIP 77917 |
3.63 |
| 2026-05-21 00:00 |
15:54:45.28 |
+09:11:56.7 |
HIP 77917 |
3.07 |
| 2026-05-21 12:00 |
15:54:40.37 |
+09:12:12.7 |
HIP 77917 |
2.96 |
| 2026-05-22 00:00 |
15:54:35.46 |
+09:12:28.4 |
HIP 77917 |
3.36 |
| 2026-05-22 12:00 |
15:54:30.56 |
+09:12:43.6 |
HIP 77917 |
4.10 |
| 2026-05-23 00:00 |
15:54:25.66 |
+09:12:58.4 |
HIP 77917 |
5.05 |
| 2026-05-23 12:00 |
15:54:20.76 |
+09:13:12.8 |
HIP 77898 |
5.89 |
| 2026-05-24 00:00 |
15:54:15.86 |
+09:13:26.8 |
HIP 77898 |
6.15 |
| 2026-05-24 12:00 |
15:54:10.97 |
+09:13:40.4 |
HIP 77898 |
6.64 |
| 2026-05-25 00:00 |
15:54:06.08 |
+09:13:53.5 |
HIP 77898 |
7.31 |
| 2026-05-25 12:00 |
15:54:01.19 |
+09:14:06.2 |
HIP 77898 |
8.12 |
| 2026-05-26 00:00 |
15:53:56.31 |
+09:14:18.5 |
HIP 77898 |
9.02 |
| 2026-05-26 12:00 |
15:53:51.44 |
+09:14:30.3 |
HIP 77898 |
9.99 |
| 2026-05-27 00:00 |
15:53:46.57 |
+09:14:41.8 |
HIP 77898 |
11.01 |
| 2026-05-27 12:00 |
15:53:41.71 |
+09:14:52.8 |
HIP 77898 |
12.07 |
| 2026-05-28 00:00 |
15:53:36.85 |
+09:15:03.4 |
HIP 77898 |
13.15 |
| 2026-05-28 12:00 |
15:53:32.01 |
+09:15:13.5 |
HIP 77898 |
14.26 |
| 2026-05-29 00:00 |
15:53:27.17 |
+09:15:23.3 |
HIP 77898 |
15.38 |
| 2026-05-29 12:00 |
15:53:22.34 |
+09:15:32.6 |
HIP 77898 |
16.51 |
| 2026-05-30 00:00 |
15:53:17.51 |
+09:15:41.5 |
HIP 77898 |
17.65 |
| 2026-05-30 12:00 |
15:53:12.70 |
+09:15:49.9 |
HIP 77829 |
18.66 |
| 2026-05-31 00:00 |
15:53:07.90 |
+09:15:57.9 |
HIP 77829 |
18.84 |
| 2026-05-31 12:00 |
15:53:03.11 |
+09:16:05.5 |
HIP 77829 |
19.11 |
| 2026-06-01 00:00 |
15:52:58.32 |
+09:16:12.7 |
HIP 77829 |
19.45 |
| 2026-06-01 12:00 |
15:52:53.55 |
+09:16:19.5 |
HIP 77829 |
19.86 |
| 2026-06-02 00:00 |
15:52:48.79 |
+09:16:25.8 |
HIP 77829 |
20.34 |