Observation information
- date-obs: 2022-05-06
- time-obs: 18:18:53.241800000
- date-end: 2022-05-07
- time-end: 06:57:35.220200000
- obs_id: A09_142T05_9000005118
- exposure: 17571.2656841
- sourceid: NGC 4509
- observer: jyoti
- ra_pnt: 188.2771
- dec_pnt: 32.0909
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A09_142T05_9000005118cztM0_level2_bc.evt
| modeM0/AS1A09_142T05_9000005118cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,382,676,480 | 367,191,360 |
Size | 1.3 GB
| 350.2 MB
|
Events in quadrant A | 7,289,989 | 2,237,786 |
Events in quadrant B | 9,841,030 | 2,242,559 |
Events in quadrant C | 12,819,477 | 2,178,446 |
Events in quadrant D | 9,586,332 | 2,107,753 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 69636 | 0 |
B | 0 | 80110 | 0 |
C | 0 | 85875 | 0 |
D | 0 | 78904 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 702 | 0 |
B | 0 | 702 | 0 |
C | 0 | 702 | 0 |
D | 0 | 702 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 111 | 0 |
B | 0 | 111 | 0 |
C | 0 | 111 | 0 |
D | 0 | 111 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 34262 | 42 | 0.122585% |
B | 34262 | 963 | 2.810694% |
C | 34262 | 1216 | 3.549121% |
D | 34262 | 594 | 1.733699% |
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 | 45523 | 34269 | 0 | 0 | 0.00% | 0.00% |  |
B | 45523 | 34261 | 186 | 186 | 0.41% | 0.54% |  |
C | 45523 | 34262 | 679 | 679 | 1.49% | 1.98% |  |
D | 45523 | 34261 | 110 | 110 | 0.24% | 0.32% |  |
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 | 10 | 83 | 665302 | 1758.08 | 1687 | 1653 | 377.5 |
A | 13 | 6 | 56613 | 145.59 | 1687 | 1653 | 377.5 |
A | 13 | 254 | 34284 | 86.44 | 1687 | 1653 | 377.5 |
B | 5 | 172 | 2582361 | 7673.94 | 1682 | 1641 | 336.3 |
B | 5 | 255 | 534315 | 1583.94 | 1682 | 1641 | 336.3 |
B | 4 | 206 | 123104 | 361.18 | 1682 | 1641 | 336.3 |
C | 0 | 10 | 2937685 | 7703.56 | 1636 | 1615 | 381.1 |
C | 0 | 207 | 1802744 | 4725.74 | 1636 | 1615 | 381.1 |
C | 15 | 214 | 1334370 | 3496.84 | 1636 | 1615 | 381.1 |
D | 13 | 249 | 1372841 | 3439.55 | 1656 | 1602 | 398.7 |
D | 2 | 250 | 492501 | 1231.35 | 1656 | 1602 | 398.7 |
D | 12 | 6 | 321999 | 803.67 | 1656 | 1602 | 398.7 |
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 |  |