ASTROSAT CZTI

Data Quality Report

Orbit 25610

Creation date: 2024-06-27T19:19:30.786276
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/AS1A07_148T02_9000003728_25610cztM0_level2.evt modeM0/AS1A07_148T02_9000003728_25610cztM0_level2_quad_clean.evt
Size (bytes)655,565,76095,022,720
Size625.2 MB 90.6 MB
Events in quadrant A5,541,189585,507
Events in quadrant B4,280,874599,131
Events in quadrant C4,197,297565,176
Events in quadrant D5,268,103547,425

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224600
B0176870
C0176260
D0207720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83495736.863097%
B83494475.353935%
C83494715.641394%
D83495957.126602%

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 9029 8352 71 71 0.79% 0.85%
B 9029 8352 2 2 0.02% 0.02%
C 9029 8352 0 0 0.00% 0.00%
D 9029 8352 215 215 2.38% 2.57%

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 8 192 891697 4154.73 1064 1041 214.4
A 0 13 382685 1780.29 1064 1041 214.4
A 6 16 80962 372.82 1064 1041 214.4
B 0 219 47899 225.32 1071 1041 208.0
B 12 111 26053 120.27 1071 1041 208.0
B 11 111 23647 108.7 1071 1041 208.0
C 14 238 161625 659.67 1030 1035 243.4
C 3 233 23668 92.97 1030 1035 243.4
C 13 61 7002 24.51 1030 1035 243.4
D 1 52 913109 3593.94 1041 1009 253.8
D 8 195 192195 753.33 1041 1009 253.8
D 13 174 137706 538.63 1041 1009 253.8

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