ASTROSAT CZTI

Data Quality Report

Orbit 23288

Creation date: 2024-06-27T18:52:23.987992
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/AS1C05_012T03_9000003442_23288cztM0_level2.evt modeM0/AS1C05_012T03_9000003442_23288cztM0_level2_quad_clean.evt
Size (bytes)463,893,120135,740,160
Size442.4 MB 129.5 MB
Events in quadrant A3,164,033948,192
Events in quadrant B3,165,057944,055
Events in quadrant C3,270,828897,028
Events in quadrant D4,023,938885,267

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133672
B0132882
C0135562
D0159252

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6257400.639284%
B6258380.607223%
C6258741.182486%
D62581612.572707%

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 7517 6257 0 0 0.00% 0.00%
B 7518 6258 4 4 0.05% 0.06%
C 7518 6259 15 15 0.20% 0.24%
D 7518 6258 104 104 1.38% 1.66%

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 9426 52.95 820 805 162.8
A 0 226 7173 39.11 820 805 162.8
A 3 137 6542 35.24 820 805 162.8
B 5 172 25081 165.27 799 781 147.0
B 0 229 20480 133.98 799 781 147.0
B 12 111 16972 110.12 799 781 147.0
C 14 238 126563 709.65 773 777 177.3
C 10 9 88087 492.58 773 777 177.3
C 0 239 29764 163.54 773 777 177.3
D 12 233 463116 2431.29 791 769 190.2
D 7 238 436279 2290.17 791 769 190.2
D 1 52 79374 413.35 791 769 190.2

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