Observation information
- date-obs: 2017-12-21
- time-obs: 13:53:27.287700000
- date-end: 2017-12-21
- time-end: 15:08:15.290200000
- obs_id: C03_015T01_9000001788
- exposure: 3189.19389828
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C03_015T01_9000001788_12070cztM0_level2.evt
| modeM0/AS1C03_015T01_9000001788_12070cztM0_level2_quad_clean.evt
|
| Size (bytes) | 239,218,560 | 68,572,800 |
| Size | 228.1 MB
| 65.4 MB
|
| Events in quadrant A | 1,738,326 | 466,191 |
| Events in quadrant B | 1,983,571 | 466,820 |
| Events in quadrant C | 1,596,774 | 468,497 |
| Events in quadrant D | 1,705,455 | 446,283 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7308 | 2 |
| B | 0 | 7982 | 1 |
| C | 0 | 6806 | 1 |
| D | 0 | 7292 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 64 | 0 |
| B | 0 | 64 | 0 |
| C | 0 | 64 | 0 |
| D | 0 | 64 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3228 | 93 | 2.881041% |
| B | 3228 | 173 | 5.359356% |
| C | 3228 | 52 | 1.610905% |
| D | 3228 | 67 | 2.075589% |
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 | 4489 | 3229 | 3 | 3 | 0.07% | 0.09% |  |
| B | 4489 | 3229 | 52 | 52 | 1.16% | 1.61% |  |
| C | 4489 | 3229 | 0 | 0 | 0.00% | 0.00% |  |
| D | 4489 | 3229 | 6 | 6 | 0.13% | 0.19% |  |
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 | 13 | 251 | 45336 | 530.34 | 414 | 406 | 84.7 |
| A | 1 | 162 | 31641 | 368.69 | 414 | 406 | 84.7 |
| A | 14 | 63 | 20238 | 234.09 | 414 | 406 | 84.7 |
| B | 4 | 239 | 248942 | 3200.32 | 410 | 399 | 77.7 |
| B | 15 | 204 | 72261 | 925.32 | 410 | 399 | 77.7 |
| B | 11 | 51 | 20127 | 254.02 | 410 | 399 | 77.7 |
| C | 0 | 207 | 8180 | 82.88 | 407 | 409 | 93.8 |
| C | 13 | 61 | 3009 | 27.73 | 407 | 409 | 93.8 |
| C | 14 | 234 | 1511 | 11.75 | 407 | 409 | 93.8 |
| D | 1 | 52 | 104257 | 1101.56 | 402 | 391 | 94.3 |
| D | 13 | 249 | 24707 | 257.88 | 402 | 391 | 94.3 |
| D | 7 | 71 | 18478 | 191.82 | 402 | 391 | 94.3 |
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 |  |