ASTROSAT CZTI

Data Quality Report

Orbit 33952

Creation date: 2024-06-27T20:54:39.401307
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/AS1T04_074T01_9000004852_33952cztM0_level2.evt modeM0/AS1T04_074T01_9000004852_33952cztM0_level2_quad_clean.evt
Size (bytes)272,983,68040,913,280
Size260.3 MB 39.0 MB
Events in quadrant A1,497,187260,790
Events in quadrant B1,901,626259,613
Events in quadrant C1,774,187257,384
Events in quadrant D2,875,899233,525

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064831
B076760
C071740
D0108290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A319490.281778%
B3194852.661240%
C3194260.814026%
D31942678.359424%

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 4537 3195 0 0 0.00% 0.00%
B 4537 3195 41 41 0.90% 1.28%
C 4537 3195 15 15 0.33% 0.47%
D 4537 3195 226 226 4.98% 7.07%

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 10 83 8026 96.46 384 376 79.3
A 13 254 5409 63.46 384 376 79.3
A 3 137 3896 44.38 384 376 79.3
B 5 172 311822 4174.39 379 368 74.6
B 3 112 20989 276.38 379 368 74.6
B 0 197 20363 267.99 379 368 74.6
C 15 214 137326 1554.18 374 377 88.1
C 0 10 74113 836.8 374 377 88.1
C 3 233 62999 710.67 374 377 88.1
D 8 195 468521 5164.63 365 353 90.6
D 2 250 292430 3222.07 365 353 90.6
D 13 249 240828 2652.82 365 353 90.6

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