ASTROSAT CZTI

Data Quality Report

Orbit 10309

Creation date: 2024-06-27T15:57:44.380544
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/AS1A03_124T01_9000001486_10309cztM0_level2.evt modeM0/AS1A03_124T01_9000001486_10309cztM0_level2_quad_clean.evt
Size (bytes)323,199,36065,655,360
Size308.2 MB 62.6 MB
Events in quadrant A2,294,607424,798
Events in quadrant B2,295,064386,898
Events in quadrant C2,270,890415,148
Events in quadrant D2,598,789423,762

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02511215137
B03037920685
C02643916283
D02712916299

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063
B063
C063
D064

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255142
B0257153
C0256156
D0250140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4837551.137068%
B4388721.640839%
C4806641.331669%
D5103350.685871%

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 7245 5702 0 0 0.00% 0.00%
B 7244 5293 13 13 0.18% 0.25%
C 7241 5682 21 21 0.29% 0.37%
D 7243 5703 4 4 0.06% 0.07%

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 8 5 59189 503.22 566 554 116.5
A 8 15 32248 272.0 566 554 116.5
A 3 1 17114 142.12 566 554 116.5
B 4 239 204407 2050.83 511 498 99.4
B 11 51 77691 776.38 511 498 99.4
B 0 214 19101 187.1 511 498 99.4
C 4 254 142103 1112.86 544 546 127.2
C 13 61 4094 27.89 544 546 127.2
C 14 255 2782 17.58 544 546 127.2
D 8 195 140807 1016.33 574 559 138.0
D 2 16 87039 626.69 574 559 138.0
D 12 233 44162 315.98 574 559 138.0

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