ASTROSAT CZTI

Data Quality Report

Orbit 10401

Creation date: 2024-06-27T15:58:54.634917
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/AS1G07_057T02_9000001504_10401cztM0_level2.evt modeM0/AS1G07_057T02_9000001504_10401cztM0_level2_quad_clean.evt
Size (bytes)603,768,960114,868,800
Size575.8 MB 109.5 MB
Events in quadrant A4,012,553723,428
Events in quadrant B4,624,635735,094
Events in quadrant C3,978,038726,124
Events in quadrant D5,079,679689,885

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01774321
B01962127
C01768520
D02067822

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8707320.367520%
B87041561.792279%
C8707150.172275%
D8708510.585668%

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 10356 8718 0 0 0.00% 0.00%
B 10356 8717 59 59 0.57% 0.68%
C 10356 8718 3 3 0.03% 0.03%
D 10356 8718 38 38 0.37% 0.44%

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 15 174 18163 80.61 1033 1007 212.8
A 0 226 9430 39.58 1033 1007 212.8
A 12 194 8209 33.84 1033 1007 212.8
B 4 239 283599 1433.7 1030 1007 197.1
B 0 219 145480 732.97 1030 1007 197.1
B 11 51 94564 474.65 1030 1007 197.1
C 14 234 36879 154.1 1005 1012 232.7
C 8 128 11343 44.39 1005 1012 232.7
C 13 61 7563 28.15 1005 1012 232.7
D 1 20 351941 1465.07 998 971 239.6
D 8 195 298979 1243.99 998 971 239.6
D 13 122 267980 1114.59 998 971 239.6

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