ASTROSAT CZTI

Data Quality Report

Orbit 09359

Creation date: 2024-06-27T15:45:00.043397
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/AS1A03_069T02_9000001324_09359cztM0_level2.evt modeM0/AS1A03_069T02_9000001324_09359cztM0_level2_quad_clean.evt
Size (bytes)103,495,68015,540,480
Size98.7 MB 14.8 MB
Events in quadrant A813,21591,220
Events in quadrant B750,61095,379
Events in quadrant C674,20592,536
Events in quadrant D800,62289,272

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04010
B0406
C04010
D04010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A045871301
B041811172
C038761046
D045941300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D091

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1335715.318352%
B1345554.089219%
C1371332.407002%
D1361564.114622%

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 2789 1561 4 4 0.14% 0.26%
B 2789 1573 4 4 0.14% 0.25%
C 2785 1584 0 0 0.00% 0.00%
D 2778 1556 8 8 0.29% 0.51%

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 5 126871 3336.58 175 170 38.0
A 13 251 3951 99.57 175 170 38.0
A 1 162 3470 86.9 175 170 38.0
B 0 214 33566 916.46 175 170 36.4
B 0 219 9174 247.09 175 170 36.4
B 0 230 6538 174.75 175 170 36.4
C 13 61 1298 27.4 172 172 41.1
C 8 222 818 15.72 172 172 41.1
C 14 67 652 11.68 172 172 41.1
D 1 52 58151 1260.44 172 166 46.0
D 12 227 38678 837.15 172 166 46.0
D 13 104 23057 497.59 172 166 46.0

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter