ASTROSAT CZTI

Data Quality Report

Orbit 32065

Creation date: 2024-06-27T20:36:03.885743
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_109T01_9000004682_32065cztM0_level2.evt modeM0/AS1A10_109T01_9000004682_32065cztM0_level2_quad_clean.evt
Size (bytes)722,721,600119,557,440
Size689.2 MB 114.0 MB
Events in quadrant A4,065,219813,361
Events in quadrant B6,893,319794,679
Events in quadrant C4,392,944765,154
Events in quadrant D6,019,992716,113

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162391
B0256501
C0173731
D0226101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76422122.774143%
B76434736.188669%
C76433204.186838%
D76436328.269004%

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 9572 7642 0 0 0.00% 0.00%
B 9573 7643 20 20 0.21% 0.26%
C 9573 7643 14 14 0.15% 0.18%
D 9573 7643 436 436 4.55% 5.70%

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 13 254 13718 60.08 1052 1033 211.1
A 3 137 10265 43.73 1052 1033 211.1
A 0 226 8907 37.3 1052 1033 211.1
B 6 159 1940580 9976.84 1019 995 194.4
B 10 245 797303 4096.05 1019 995 194.4
B 5 172 84256 428.28 1019 995 194.4
C 0 10 267091 1151.46 989 999 231.1
C 14 238 161742 695.59 989 999 231.1
C 14 225 32439 136.05 989 999 231.1
D 2 250 837098 3572.61 983 958 234.0
D 12 233 541947 2311.5 983 958 234.0
D 12 79 413981 1764.74 983 958 234.0

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