ASTROSAT CZTI

Data Quality Report

Orbit 25206

Creation date: 2024-06-27T19:15:03.363256
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/AS1A07_027T01_9000003690_25206cztM0_level2.evt modeM0/AS1A07_027T01_9000003690_25206cztM0_level2_quad_clean.evt
Size (bytes)308,845,44071,271,360
Size294.5 MB 68.0 MB
Events in quadrant A2,001,637472,633
Events in quadrant B2,043,463475,431
Events in quadrant C2,099,444456,563
Events in quadrant D2,907,792443,183

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089670
B090690
C091140
D0115440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4404250.567666%
B4405531.203178%
C4405741.679909%
D44051222.769580%

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 4724 4405 0 0 0.00% 0.00%
B 4725 4406 0 0 0.00% 0.00%
C 4725 4406 0 0 0.00% 0.00%
D 4725 4406 112 112 2.37% 2.54%

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 13 254 6770 59.87 517 507 104.6
A 5 203 5113 44.03 517 507 104.6
A 3 137 4840 41.42 517 507 104.6
B 5 235 32604 322.93 512 497 99.4
B 12 111 12353 119.25 512 497 99.4
B 11 111 11090 106.54 512 497 99.4
C 14 238 80188 673.28 500 502 118.4
C 7 247 54681 457.77 500 502 118.4
C 3 233 11046 89.09 500 502 118.4
D 8 195 587507 4769.29 504 488 123.1
D 1 239 255696 2073.46 504 488 123.1
D 7 238 46918 377.23 504 488 123.1

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