ASTROSAT CZTI

Data Quality Report

Orbit 14010

Creation date: 2024-06-27T16:49:05.736759
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_064T01_9000002070_14010cztM0_level2.evt modeM0/AS1G08_064T01_9000002070_14010cztM0_level2_quad_clean.evt
Size (bytes)487,949,760105,667,200
Size465.3 MB 100.8 MB
Events in quadrant A3,061,419718,524
Events in quadrant B3,314,008718,659
Events in quadrant C3,065,850717,069
Events in quadrant D4,935,271632,913

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127922
B0137131
C0127881
D0185901

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5909881.489254%
B59091272.149264%
C5909671.133864%
D590966411.237096%

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 7205 5911 5 5 0.07% 0.08%
B 7205 5911 38 38 0.53% 0.64%
C 7205 5911 1 1 0.01% 0.02%
D 7205 5911 537 537 7.45% 9.08%

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 12 189 45213 287.81 775 759 154.5
A 15 69 16738 103.45 775 759 154.5
A 8 15 15655 96.44 775 759 154.5
B 10 16 156588 1097.5 763 745 142.0
B 3 64 64189 446.8 763 745 142.0
B 0 189 34692 239.07 763 745 142.0
C 3 233 91803 524.36 761 768 173.6
C 14 234 5651 28.13 761 768 173.6
C 13 61 5333 26.29 761 768 173.6
D 10 157 1133691 6826.45 707 693 166.0
D 1 52 763085 4593.5 707 693 166.0
D 13 189 131357 787.27 707 693 166.0

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