Observation information
- date-obs: 2019-01-04
- time-obs: 14:27:46.405900000
- date-end: 2019-01-04
- time-end: 15:16:47.405000000
- obs_id: A05_208T01_9000002614
- exposure: 897.217405796
- sourceid: NGC 4939
- observer: KshamaSK
- ra_pnt: 196.0599
- dec_pnt: -10.3396
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_208T01_9000002614_17681cztM0_level2.evt
| modeM0/AS1A05_208T01_9000002614_17681cztM0_level2_quad_clean.evt
|
| Size (bytes) | 218,854,080 | 20,949,120 |
| Size | 208.7 MB
| 20.0 MB
|
| Events in quadrant A | 1,409,545 | 106,734 |
| Events in quadrant B | 1,588,427 | 107,568 |
| Events in quadrant C | 1,618,455 | 104,828 |
| Events in quadrant D | 1,809,546 | 104,331 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6049 | 0 |
| B | 0 | 6575 | 0 |
| C | 0 | 6694 | 0 |
| D | 0 | 7400 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 60 | 0 |
| B | 0 | 60 | 0 |
| C | 0 | 60 | 0 |
| D | 0 | 60 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2941 | 3 | 0.102006% |
| B | 2941 | 46 | 1.564094% |
| C | 2941 | 18 | 0.612037% |
| D | 2942 | 49 | 1.665534% |
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 | 2941 | 2941 | 0 | 0 | 0.00% | 0.00% |  |
| B | 2941 | 2941 | 28 | 28 | 0.95% | 0.95% |  |
| C | 2941 | 2941 | 0 | 0 | 0.00% | 0.00% |  |
| D | 2942 | 2942 | 31 | 31 | 1.05% | 1.05% |  |
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 | 14 | 237 | 89973 | 1241.63 | 342 | 334 | 72.2 |
| A | 0 | 226 | 2996 | 36.87 | 342 | 334 | 72.2 |
| A | 3 | 137 | 2683 | 32.54 | 342 | 334 | 72.2 |
| B | 7 | 220 | 134520 | 2014.86 | 340 | 332 | 66.6 |
| B | 10 | 245 | 37169 | 553.12 | 340 | 332 | 66.6 |
| B | 0 | 229 | 34203 | 508.58 | 340 | 332 | 66.6 |
| C | 3 | 233 | 277105 | 3536.86 | 327 | 329 | 78.3 |
| C | 14 | 238 | 50638 | 642.89 | 327 | 329 | 78.3 |
| C | 5 | 218 | 13967 | 174.28 | 327 | 329 | 78.3 |
| D | 7 | 238 | 534398 | 6424.63 | 332 | 322 | 83.1 |
| D | 2 | 234 | 14172 | 166.61 | 332 | 322 | 83.1 |
| D | 10 | 70 | 8702 | 100.81 | 332 | 322 | 83.1 |
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 |  |