ASTROSAT CZTI

Data Quality Report

Orbit 02104

Creation date: 2024-06-27T14:14:22.128410
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/AS1SLEW_01234_9000000325_02104cztM0_level2.evt modeM0/AS1SLEW_01234_9000000325_02104cztM0_level2_quad_clean.evt
Size (bytes)31,060,8008,942,400
Size29.6 MB 8.5 MB
Events in quadrant A226,69356,484
Events in quadrant B241,05355,994
Events in quadrant C220,45355,238
Events in quadrant D209,55754,486

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011490
B011520
C011690
D011520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57410.174216%
B57400.000000%
C57410.174216%
D57400.000000%

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 574 574 0 0 0.00% 0.00%
B 574 574 0 0 0.00% 0.00%
C 574 574 1 1 0.17% 0.17%
D 574 574 0 0 0.00% 0.00%

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 10 2 1950 138.28 57 56 13.7
A 0 199 1677 118.35 57 56 13.7
A 0 128 191 9.86 57 56 13.7
B 0 220 5419 413.98 58 57 13.0
B 5 68 3437 260.96 58 57 13.0
B 5 189 3015 228.38 58 57 13.0
C 14 223 8414 598.97 54 53 14.0
C 3 202 140 6.2 54 53 14.0
C 3 11 139 6.13 54 53 14.0
D 2 32 4242 300.27 53 52 14.0
D 10 166 984 66.79 53 52 14.0
D 2 206 549 35.62 53 52 14.0

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
Veto Counter