ASTROSAT CZTI

Data Quality Report

Orbit 09508

Creation date: 2024-06-27T15:47:01.474882
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_230T06_9000001350_09508cztM0_level2.evt modeM0/AS1G05_230T06_9000001350_09508cztM0_level2_quad_clean.evt
Size (bytes)251,447,04048,841,920
Size239.8 MB 46.6 MB
Events in quadrant A2,005,292305,838
Events in quadrant B1,724,243329,155
Events in quadrant C1,637,875322,448
Events in quadrant D2,027,999293,859

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167368618
B0136566519
C0133366315
D0158367798

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012963
B012959
C012969
D012971

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0184
B0183
C0183
D0192

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A30731053.416856%
B3260782.392638%
C3277561.708880%
D3156802.534854%

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 7584 3728 0 0 0.00% 0.00%
B 7587 3974 0 0 0.00% 0.00%
C 7588 3981 0 0 0.00% 0.00%
D 7588 3857 10 10 0.13% 0.26%

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 5 238594 2859.34 409 401 83.3
A 1 162 91408 1092.48 409 401 83.3
A 1 178 37206 441.82 409 401 83.3
B 0 214 17060 200.43 431 421 83.0
B 5 175 15800 185.25 431 421 83.0
B 0 213 9498 109.34 431 421 83.0
C 13 61 3253 29.03 419 422 97.5
C 8 222 2409 20.38 419 422 97.5
C 1 0 1114 7.1 419 422 97.5
D 12 233 167410 1627.44 401 391 102.6
D 1 52 158810 1543.64 401 391 102.6
D 8 195 131059 1273.23 401 391 102.6

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