ASTROSAT CZTI

Data Quality Report

Orbit 10335

Creation date: 2024-06-27T15:58:04.023578
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/AS1C02_038T02_9000001490_10335cztM0_level2.evt modeM0/AS1C02_038T02_9000001490_10335cztM0_level2_quad_clean.evt
Size (bytes)76,619,52011,551,680
Size73.1 MB 11.0 MB
Events in quadrant A566,08158,661
Events in quadrant B534,42370,023
Events in quadrant C538,59167,806
Events in quadrant D608,67174,471

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02411
B02613
C02613
D0218

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05228
B05230
C05229
D05126

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A067274368
B056763560
C053143148
D060493612

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A89730.334448%
B99820.200401%
C105120.190295%
D114030.263158%

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 1276 1120 0 0 0.00% 0.00%
B 1276 1182 0 0 0.00% 0.00%
C 1276 1227 0 0 0.00% 0.00%
D 1276 1183 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 8 15 84461 3276.43 119 117 25.7
A 13 251 20575 794.71 119 117 25.7
A 0 226 1145 39.93 119 117 25.7
B 0 214 8425 306.3 132 129 27.1
B 4 239 6568 237.74 132 129 27.1
B 0 219 3323 117.93 132 129 27.1
C 13 61 980 25.35 137 138 33.2
C 14 234 619 14.48 137 138 33.2
C 14 67 415 8.34 137 138 33.2
D 8 195 11782 315.89 150 146 36.8
D 2 33 8245 219.87 150 146 36.8
D 1 20 6743 179.09 150 146 36.8

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