ASTROSAT CZTI

Data Quality Report

Orbit 28294

Creation date: 2024-06-27T19:50:09.037349
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/AS1A10_102T06_9000004078_28294cztM0_level2.evt modeM0/AS1A10_102T06_9000004078_28294cztM0_level2_quad_clean.evt
Size (bytes)525,257,28090,106,560
Size500.9 MB 85.9 MB
Events in quadrant A3,212,835578,998
Events in quadrant B3,391,926586,148
Events in quadrant C3,369,515566,211
Events in quadrant D5,489,402541,063

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139880
B0145070
C0144460
D0208700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6538460.703579%
B6538861.315387%
C65381121.713062%
D65385468.351178%

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 7643 6539 2 2 0.03% 0.03%
B 7643 6538 32 32 0.42% 0.49%
C 7643 6538 11 11 0.14% 0.17%
D 7643 6538 367 367 4.80% 5.61%

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 4 2 31890 189.18 819 802 164.3
A 15 174 12770 72.83 819 802 164.3
A 13 254 11757 66.66 819 802 164.3
B 10 245 139266 896.45 818 799 154.5
B 12 111 18106 112.05 818 799 154.5
B 0 230 16711 103.02 818 799 154.5
C 3 233 131974 698.89 798 802 187.7
C 14 238 129426 685.32 798 802 187.7
C 13 61 5621 25.68 798 802 187.7
D 1 52 1626954 8809.44 774 753 184.6
D 8 195 351543 1900.3 774 753 184.6
D 12 250 317097 1713.7 774 753 184.6

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