ASTROSAT CZTI

Data Quality Report

Orbit 24902

Creation date: 2024-06-27T19:11:14.810197
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/AS1A08_003T13_9000003646_24902cztM0_level2.evt modeM0/AS1A08_003T13_9000003646_24902cztM0_level2_quad_clean.evt
Size (bytes)222,344,64062,726,400
Size212.0 MB 59.8 MB
Events in quadrant A1,565,501422,822
Events in quadrant B1,594,599427,605
Events in quadrant C1,603,166403,048
Events in quadrant D1,731,668399,193

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069870
B070160
C070180
D073190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A348030.086207%
B348130.086182%
C348180.229819%
D348150.143637%

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 3480 3480 0 0 0.00% 0.00%
B 3481 3481 0 0 0.00% 0.00%
C 3481 3481 0 0 0.00% 0.00%
D 3481 3481 5 5 0.14% 0.14%

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 11 208 6801 76.45 402 394 83.8
A 13 254 5458 60.42 402 394 83.8
A 6 16 4283 46.4 402 394 83.8
B 7 202 14757 184.39 397 386 77.9
B 12 111 9143 112.36 397 386 77.9
B 11 111 8344 102.11 397 386 77.9
C 14 238 62395 671.08 385 387 92.4
C 7 247 14948 157.59 385 387 92.4
C 4 175 9785 101.71 385 387 92.4
D 8 195 129898 1345.46 393 381 96.3
D 1 52 84696 875.89 393 381 96.3
D 7 238 21947 224.03 393 381 96.3

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