ASTROSAT CZTI

Data Quality Report

Orbit 30704

Creation date: 2024-06-27T20:18:40.155510
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_058T14_9000004430_30704cztM0_level2.evt modeM0/AS1A10_058T14_9000004430_30704cztM0_level2_quad_clean.evt
Size (bytes)730,244,16098,297,280
Size696.4 MB 93.7 MB
Events in quadrant A3,648,674655,682
Events in quadrant B5,387,402652,761
Events in quadrant C3,842,945626,193
Events in quadrant D8,784,806574,524

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147482
B0205302
C0154392
D0308492

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67071702.534665%
B67072303.429253%
C67072754.100194%
D67086129.123435%

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 7597 6707 11 11 0.14% 0.16%
B 7597 6707 12 12 0.16% 0.18%
C 7597 6707 63 63 0.83% 0.94%
D 7598 6708 528 528 6.95% 7.87%

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 203920 1144.58 891 876 177.4
A 13 254 12865 67.58 891 876 177.4
A 3 137 8481 42.87 891 876 177.4
B 6 159 1838510 11032.45 871 850 166.6
B 0 190 58915 348.6 871 850 166.6
B 12 111 20147 115.85 871 850 166.6
C 10 22 363201 1840.96 844 851 196.8
C 14 238 136293 688.13 844 851 196.8
C 2 114 15391 73.87 844 851 196.8
D 8 195 4892298 23125.33 833 817 211.5
D 1 52 286980 1352.89 833 817 211.5
D 13 249 157300 739.8 833 817 211.5

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