Observation information
- date-obs: 2018-10-23
- time-obs: 07:48:38.848900000
- date-end: 2018-10-24
- time-end: 12:55:00.774200000
- obs_id: C04_009T01_9000002448
- exposure: 73727.8547478
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C04_009T01_9000002448cztM0_level2.fits
| modeM0/AS1C04_009T01_9000002448cztM0_level2_quad_clean.evt
|
| Size (bytes) | 843,851,520 | 1,161,552,960 |
| Size | 804.8 MB
| 1.1 GB
|
| Events in quadrant A | 5,089,392 | 7,491,337 |
| Events in quadrant B | 4,890,908 | 7,583,419 |
| Events in quadrant C | 5,061,492 | 7,334,783 |
| Events in quadrant D | 4,357,986 | 6,618,079 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 190031 | 0 |
| B | 0 | 204728 | 0 |
| C | 0 | 198792 | 0 |
| D | 0 | 211401 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1828 | 0 |
| B | 0 | 1828 | 0 |
| C | 0 | 1828 | 0 |
| D | 0 | 1828 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 151 | 0 |
| B | 0 | 151 | 0 |
| C | 0 | 151 | 0 |
| D | 0 | 151 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 89803 | 1087 | 1.210427% |
| B | 89803 | 1282 | 1.427569% |
| C | 89803 | 1127 | 1.254969% |
| D | 89803 | 2672 | 2.975402% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 104783 | 89804 | 0 | 0 | 0.00% | 0.00% |  |
| B | 104783 | 89804 | 0 | 0 | 0.00% | 0.00% |  |
| C | 104783 | 89803 | 0 | 0 | 0.00% | 0.00% |  |
| D | 104783 | 89789 | 0 | 0 | 0.00% | 0.00% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 0 | 29 | 4919 | 11.22 | 1324 | 1245 | 327.4 |
| A | 7 | 110 | 4025 | 8.49 | 1324 | 1245 | 327.4 |
| A | 0 | 30 | 3882 | 8.05 | 1324 | 1245 | 327.4 |
| B | 2 | 9 | 3971 | 10.86 | 1297 | 1243 | 251.3 |
| B | 2 | 8 | 3467 | 8.85 | 1297 | 1243 | 251.3 |
| B | 14 | 254 | 3295 | 8.16 | 1297 | 1243 | 251.3 |
| C | 12 | 241 | 3714 | 7.15 | 1338 | 1255 | 344.2 |
| C | 3 | 126 | 3396 | 6.22 | 1338 | 1255 | 344.2 |
| C | 7 | 111 | 3342 | 6.06 | 1338 | 1255 | 344.2 |
| D | 6 | 231 | 3170 | 6.08 | 1245 | 1134 | 335.0 |
| D | 10 | 189 | 3136 | 5.98 | 1245 | 1134 | 335.0 |
| D | 3 | 14 | 3127 | 5.95 | 1245 | 1134 | 335.0 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |