ASTROSAT CZTI

Data Quality Report

Orbit 05201

Creation date: 2024-06-27T14:52:37.059569
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/AS1G05_152T02_9000000658_05201cztM0_level2.evt modeM0/AS1G05_152T02_9000000658_05201cztM0_level2_quad_clean.evt
Size (bytes)179,991,36018,512,640
Size171.7 MB 17.7 MB
Events in quadrant A1,304,47092,141
Events in quadrant B1,359,84394,201
Events in quadrant C1,297,06294,440
Events in quadrant D1,309,61192,728

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01656310909
B01671111000
C01648510816
D01667610944

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011
B011
C033
D011

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158104
B0161113
C0158105
D015597

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A25902439.382239%
B26052348.982726%
C25812017.787679%
D25792067.987592%

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 7685 3105 0 0 0.00% 0.00%
B 7699 3118 0 0 0.00% 0.00%
C 7691 3092 0 0 0.00% 0.00%
D 7690 3119 1 1 0.01% 0.03%

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 34959 493.7 329 319 70.2
A 12 194 3318 42.74 329 319 70.2
A 0 226 3243 41.67 329 319 70.2
B 15 204 62429 912.62 332 322 68.1
B 4 48 10602 151.06 332 322 68.1
B 12 111 6342 88.46 332 322 68.1
C 1 16 13901 173.45 325 326 78.3
C 8 128 6848 83.33 325 326 78.3
C 8 112 2959 33.64 325 326 78.3
D 2 63 52978 637.47 327 315 82.6
D 10 15 10512 123.43 327 315 82.6
D 2 14 10409 122.18 327 315 82.6

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