ASTROSAT CZTI

Data Quality Report

Orbit 24069

Creation date: 2024-06-27T19:01:44.677642
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/AS1A07_165T01_9000003558_24069cztM0_level2.evt modeM0/AS1A07_165T01_9000003558_24069cztM0_level2_quad_clean.evt
Size (bytes)546,986,880138,962,880
Size521.6 MB 132.5 MB
Events in quadrant A3,245,529951,960
Events in quadrant B3,365,854980,902
Events in quadrant C4,905,347922,624
Events in quadrant D4,615,990907,753

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136263
B0140082
C0188652
D0180632

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6390120.187793%
B6390280.438185%
C63903856.025039%
D6390901.408451%

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 7590 6391 0 0 0.00% 0.00%
B 7590 6391 0 0 0.00% 0.00%
C 7590 6391 166 166 2.19% 2.60%
D 7590 6391 46 46 0.61% 0.72%

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 2 250 15250 87.95 832 817 164.1
A 3 1 15170 87.46 832 817 164.1
A 13 254 9690 54.07 832 817 164.1
B 15 33 53352 341.83 833 814 153.7
B 12 111 17399 107.91 833 814 153.7
B 0 189 16626 102.88 833 814 153.7
C 10 9 839012 4501.65 807 814 186.2
C 7 247 502923 2696.64 807 814 186.2
C 0 239 288865 1547.02 807 814 186.2
D 8 195 1228941 6213.46 821 799 197.7
D 1 52 129226 649.74 821 799 197.7
D 11 176 105580 530.11 821 799 197.7

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