ASTROSAT CZTI

Data Quality Report

Orbit 03125

Creation date: 2024-06-27T14:24:56.961331
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_214T01_9000000428_03125cztM0_level2.evt modeM0/AS1G05_214T01_9000000428_03125cztM0_level2_quad_clean.evt
Size (bytes)387,244,80067,832,640
Size369.3 MB 64.7 MB
Events in quadrant A2,742,585424,232
Events in quadrant B2,754,423431,202
Events in quadrant C2,975,505418,054
Events in quadrant D2,884,785399,401

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116740
B0116770
C0124380
D0124220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5440641.176471%
B5440651.194853%
C5440651.194853%
D5440691.268382%

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 6670 5441 12 12 0.18% 0.22%
B 6670 5441 3 3 0.04% 0.06%
C 6670 5440 26 26 0.39% 0.48%
D 6670 5441 43 43 0.64% 0.79%

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 0 13 146458 1083.77 655 642 134.5
A 12 247 49163 360.63 655 642 134.5
A 3 1 13049 92.21 655 642 134.5
B 14 167 54521 422.31 660 646 127.6
B 4 81 39605 305.39 660 646 127.6
B 2 249 16235 122.2 660 646 127.6
C 1 192 159524 1093.82 624 628 145.3
C 0 219 157924 1082.8 624 628 145.3
C 14 223 101704 695.79 624 628 145.3
D 13 120 388935 2366.68 623 610 164.1
D 13 223 57670 347.76 623 610 164.1
D 2 136 27183 161.95 623 610 164.1

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