ASTROSAT CZTI

Data Quality Report

Orbit 33062

Creation date: 2024-06-27T20:44:31.347870
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/AS1A11_080T01_9000004756_33062cztM0_level2.evt modeM0/AS1A11_080T01_9000004756_33062cztM0_level2_quad_clean.evt
Size (bytes)662,696,64062,087,040
Size632.0 MB 59.2 MB
Events in quadrant A2,374,002441,858
Events in quadrant B2,946,588445,404
Events in quadrant C2,749,395432,111
Events in quadrant D11,669,385217,095

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099663
B0118432
C0109252
D0380252

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A487860.123001%
B4878751.537515%
C4878791.619516%
D4878399281.836818%

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 7002 4879 0 0 0.00% 0.00%
B 7002 4879 50 50 0.71% 1.02%
C 7002 4879 54 54 0.77% 1.11%
D 7002 4879 4044 4044 57.75% 82.89%

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 12 227 10304 79.77 607 597 121.7
A 13 6 9831 75.88 607 597 121.7
A 13 254 8414 64.23 607 597 121.7
B 5 172 163139 1404.43 610 596 115.7
B 5 31 97740 839.36 610 596 115.7
B 0 189 75013 642.99 610 596 115.7
C 0 10 317302 2304.02 594 603 137.5
C 7 221 80707 582.77 594 603 137.5
C 14 67 8163 55.0 594 603 137.5
D 7 223 8538585 84406.54 382 375 101.2
D 8 195 1048389 10360.39 382 375 101.2
D 2 249 383832 3790.75 382 375 101.2

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