Observation information
- date-obs: 2017-04-16
- time-obs: 12:09:30.402000000
- date-end: 2017-04-16
- time-end: 12:55:33.401500000
- obs_id: G07_076T04_9000001172
- exposure: 608.52422595
- sourceid: NGC 4169
- observer: kanak
- ra_pnt: 183.1353
- dec_pnt: 29.16711
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_076T04_9000001172_08383cztM0_level2.evt
| modeM0/AS1G07_076T04_9000001172_08383cztM0_level2_quad_clean.evt
|
| Size (bytes) | 145,817,280 | 14,448,960 |
| Size | 139.1 MB
| 13.8 MB
|
| Events in quadrant A | 1,036,131 | 73,088 |
| Events in quadrant B | 1,200,794 | 75,277 |
| Events in quadrant C | 1,005,192 | 70,998 |
| Events in quadrant D | 1,032,217 | 68,728 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 44 | 0 |
| B | 0 | 44 | 0 |
| C | 0 | 44 | 0 |
| D | 0 | 44 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4327 | 2 |
| B | 0 | 4833 | 1 |
| C | 0 | 4306 | 1 |
| D | 0 | 4415 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2043 | 89 | 4.356339% |
| B | 2043 | 108 | 5.286344% |
| C | 2043 | 67 | 3.279491% |
| D | 2043 | 66 | 3.230543% |
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 | 2763 | 2044 | 0 | 0 | 0.00% | 0.00% |  |
| B | 2763 | 2043 | 0 | 0 | 0.00% | 0.00% |  |
| C | 2763 | 2044 | 0 | 0 | 0.00% | 0.00% |  |
| D | 2763 | 2044 | 1 | 1 | 0.04% | 0.05% |  |
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 | 12 | 194 | 2506 | 39.16 | 268 | 262 | 57.3 |
| A | 0 | 226 | 2474 | 38.61 | 268 | 262 | 57.3 |
| A | 13 | 14 | 2052 | 31.24 | 268 | 262 | 57.3 |
| B | 4 | 48 | 107519 | 1969.45 | 268 | 261 | 54.5 |
| B | 0 | 231 | 23994 | 435.78 | 268 | 261 | 54.5 |
| B | 0 | 214 | 9772 | 174.64 | 268 | 261 | 54.5 |
| C | 13 | 61 | 1940 | 27.16 | 257 | 257 | 62.0 |
| C | 14 | 67 | 866 | 9.83 | 257 | 257 | 62.0 |
| C | 3 | 202 | 585 | 5.29 | 257 | 257 | 62.0 |
| D | 1 | 52 | 15904 | 243.89 | 258 | 249 | 64.2 |
| D | 12 | 233 | 8962 | 135.74 | 258 | 249 | 64.2 |
| D | 7 | 71 | 8306 | 125.52 | 258 | 249 | 64.2 |
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 |  |