ASTROSAT CZTI

Data Quality Report

Orbit 06862

Creation date: 2024-06-27T15:12:30.653084
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A02_005T01_9000000948_06862cztM0_level2.evt modeM0/AS1A02_005T01_9000000948_06862cztM0_level2_quad_clean.evt
Size (bytes)454,095,36086,751,360
Size433.1 MB 82.7 MB
Events in quadrant A3,121,626547,042
Events in quadrant B3,396,916553,921
Events in quadrant C3,241,975550,402
Events in quadrant D3,553,979526,319

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135433
B0143602
C0138152
D0148472

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6444941.458721%
B64441181.831161%
C64441211.877716%
D64441702.638113%

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 7614 6445 0 0 0.00% 0.00%
B 7614 6445 8 8 0.11% 0.12%
C 7614 6445 12 12 0.16% 0.19%
D 7614 6445 67 67 0.88% 1.04%

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 3 1 19971 117.12 804 787 163.8
A 0 226 7740 42.45 804 787 163.8
A 12 194 7317 39.87 804 787 163.8
B 4 48 117891 759.07 811 792 154.3
B 4 80 61358 392.61 811 792 154.3
B 0 219 27886 175.63 811 792 154.3
C 9 247 99714 541.32 789 793 182.7
C 9 16 53685 289.44 789 793 182.7
C 13 61 6124 29.17 789 793 182.7
D 2 216 243226 1267.77 786 764 191.3
D 2 152 136931 711.98 786 764 191.3
D 8 195 50099 257.96 786 764 191.3

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