ASTROSAT CZTI

Data Quality Report

Orbit 28453

Creation date: 2024-06-27T19:51:54.030099
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_101T21_9000004090_28453cztM0_level2.evt modeM0/AS1A10_101T21_9000004090_28453cztM0_level2_quad_clean.evt
Size (bytes)536,132,160115,776,000
Size511.3 MB 110.4 MB
Events in quadrant A2,961,709799,248
Events in quadrant B3,018,056810,317
Events in quadrant C3,654,544763,411
Events in quadrant D6,175,291693,818

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128890
B0129770
C0148400
D0224000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6292460.731087%
B6293420.667408%
C62934016.372160%
D6293103516.446846%

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 7292 6292 2 2 0.03% 0.03%
B 7293 6293 3 3 0.04% 0.05%
C 7293 6293 191 191 2.62% 3.04%
D 7293 6293 996 996 13.66% 15.83%

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 4 2 10016 60.43 763 747 153.4
A 13 254 9747 58.68 763 747 153.4
A 3 137 7401 43.38 763 747 153.4
B 12 111 17656 118.93 750 731 142.3
B 15 222 17011 114.39 750 731 142.3
B 5 255 16402 110.11 750 731 142.3
C 3 233 721184 4336.98 719 722 166.1
C 14 238 116030 694.12 719 722 166.1
C 7 220 17386 100.31 719 722 166.1
D 1 52 2759407 16533.66 689 670 166.9
D 8 195 383784 2296.08 689 670 166.9
D 2 250 246658 1474.26 689 670 166.9

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