ASTROSAT CZTI

Data Quality Report

Orbit 13688

Creation date: 2024-06-27T16:44:34.383652
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/AS1G08_070T01_9000002028_13688cztM0_level2.evt modeM0/AS1G08_070T01_9000002028_13688cztM0_level2_quad_clean.evt
Size (bytes)501,384,960103,789,440
Size478.2 MB 99.0 MB
Events in quadrant A3,119,188692,015
Events in quadrant B3,738,233739,278
Events in quadrant C3,295,778670,093
Events in quadrant D4,588,300586,810

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134233
B0152342
C0137002
D0179092

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6524120.183936%
B65241372.099939%
C652490.137952%
D65245348.185162%

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 7615 6526 0 0 0.00% 0.00%
B 7615 6526 53 53 0.70% 0.81%
C 7615 6526 0 0 0.00% 0.00%
D 7615 6526 406 406 5.33% 6.22%

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 0 226 7121 38.41 810 795 164.7
A 12 194 6101 32.22 810 795 164.7
A 3 137 4817 24.42 810 795 164.7
B 8 250 281774 1786.17 825 810 157.3
B 0 219 186835 1182.61 825 810 157.3
B 4 80 26083 160.67 825 810 157.3
C 3 233 209066 1132.98 790 798 183.8
C 14 234 8358 41.13 790 798 183.8
C 13 61 5569 25.95 790 798 183.8
D 13 122 915446 5136.85 739 718 178.1
D 1 52 457675 2566.14 739 718 178.1
D 5 222 227836 1275.43 739 718 178.1

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