ASTROSAT CZTI

Data Quality Report

Orbit 10829

Creation date: 2024-06-27T16:04:16.920278
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_086T01_9000001568_10829cztM0_level2.evt modeM0/AS1A03_086T01_9000001568_10829cztM0_level2_quad_clean.evt
Size (bytes)630,408,96088,560,000
Size601.2 MB 84.5 MB
Events in quadrant A5,641,360556,229
Events in quadrant B4,636,632566,506
Events in quadrant C3,271,024572,095
Events in quadrant D5,079,855509,997

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214993
B0182572
C0141182
D0197262

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68405948.684211%
B68403485.087719%
C6840480.701754%
D68403785.526316%

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 7695 6841 355 355 4.61% 5.19%
B 7695 6841 132 132 1.72% 1.93%
C 7695 6841 0 0 0.00% 0.00%
D 7695 6841 303 303 3.94% 4.43%

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 2368176 13996.43 826 813 169.1
A 13 251 72322 422.78 826 813 169.1
A 11 29 16954 95.43 826 813 169.1
B 4 239 1133999 7075.33 843 826 160.2
B 0 214 79420 490.73 843 826 160.2
B 4 173 34633 211.08 843 826 160.2
C 14 234 9890 46.82 836 843 193.2
C 13 61 6302 28.25 836 843 193.2
C 8 222 2963 10.97 836 843 193.2
D 1 52 1111089 5677.63 807 785 195.6
D 8 195 676284 3454.22 807 785 195.6
D 13 104 56901 286.95 807 785 195.6

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