ASTROSAT CZTI

Data Quality Report

Orbit 28094

Creation date: 2024-06-27T19:47:59.154963
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_057T05_9000004060_28094cztM0_level2.evt modeM0/AS1A10_057T05_9000004060_28094cztM0_level2_quad_clean.evt
Size (bytes)562,069,440103,106,880
Size536.0 MB 98.3 MB
Events in quadrant A3,447,219698,690
Events in quadrant B3,374,092696,597
Events in quadrant C3,460,098656,594
Events in quadrant D6,295,841612,625

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140380
B0138860
C0141560
D0231160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6566360.548279%
B6566460.700579%
C6566721.096558%
D656681412.397198%

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 7796 6567 0 0 0.00% 0.00%
B 7796 6567 1 1 0.01% 0.02%
C 7796 6567 2 2 0.03% 0.03%
D 7796 6566 701 701 8.99% 10.68%

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 68989 396.98 869 854 171.6
A 15 174 21989 123.14 869 854 171.6
A 13 254 11253 60.59 869 854 171.6
B 12 111 18942 113.63 851 829 159.4
B 11 111 17251 103.03 851 829 159.4
B 0 190 16431 97.88 851 829 159.4
C 14 238 136193 716.72 817 823 188.9
C 3 233 116783 613.95 817 823 188.9
C 15 208 24738 126.62 817 823 188.9
D 12 1 2026501 11000.71 781 763 184.1
D 1 52 788633 4278.51 781 763 184.1
D 8 195 334423 1811.93 781 763 184.1

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