ASTROSAT CZTI

Data Quality Report

Orbit 22983

Creation date: 2024-06-27T18:48:15.611033
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_047T09_9000003396_22983cztM0_level2.evt modeM0/AS1A07_047T09_9000003396_22983cztM0_level2_quad_clean.evt
Size (bytes)246,934,08058,988,160
Size235.5 MB 56.3 MB
Events in quadrant A1,594,241395,676
Events in quadrant B1,659,721408,044
Events in quadrant C1,624,630390,732
Events in quadrant D2,384,464367,863

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066021
B067842
C066171
D091181

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3150210.666667%
B3149321.016196%
C3149361.143220%
D31492437.716735%

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 4335 3151 0 0 0.00% 0.00%
B 4334 3150 1 1 0.02% 0.03%
C 4334 3150 0 0 0.00% 0.00%
D 4334 3150 165 165 3.81% 5.24%

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 5138 56.7 412 404 83.5
A 0 226 3598 38.25 412 404 83.5
A 3 137 3564 37.85 412 404 83.5
B 0 189 20243 250.38 412 403 79.2
B 0 190 17343 213.78 412 403 79.2
B 12 111 9029 108.86 412 403 79.2
C 14 238 63519 682.91 397 400 92.4
C 0 10 9911 102.9 397 400 92.4
C 7 247 3918 38.06 397 400 92.4
D 1 52 427075 4487.32 389 378 95.1
D 13 153 221961 2330.26 389 378 95.1
D 12 227 203515 2136.27 389 378 95.1

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