ASTROSAT CZTI

Data Quality Report

Orbit 30601

Creation date: 2024-06-27T20:17:30.503764
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_058T03_9000004408_30601cztM0_level2.evt modeM0/AS1A10_058T03_9000004408_30601cztM0_level2_quad_clean.evt
Size (bytes)627,719,040107,795,520
Size598.6 MB 102.8 MB
Events in quadrant A3,651,210737,974
Events in quadrant B5,209,485731,016
Events in quadrant C3,731,802689,378
Events in quadrant D6,000,600674,658

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148511
B0195081
C0152231
D0221411

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61832233.606663%
B61832914.706453%
C61834617.455928%
D61842273.670763%

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 7423 6184 16 16 0.22% 0.26%
B 7423 6184 8 8 0.11% 0.13%
C 7423 6184 22 22 0.30% 0.36%
D 7424 6185 67 67 0.90% 1.08%

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 0 13 175444 988.71 900 886 176.6
A 13 254 10713 55.66 900 886 176.6
A 8 192 9290 47.6 900 886 176.6
B 6 159 1643814 10096.11 875 858 162.7
B 0 229 62769 380.45 875 858 162.7
B 5 172 43608 262.7 875 858 162.7
C 14 238 188149 981.19 831 840 190.9
C 0 10 116309 604.86 831 840 190.9
C 15 208 74616 386.46 831 840 190.9
D 8 195 2493292 12431.09 865 846 200.5
D 2 250 93597 462.6 865 846 200.5
D 5 222 57653 283.33 865 846 200.5

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