ASTROSAT CZTI

Data Quality Report

Orbit 10632

Creation date: 2024-06-27T16:01:44.538436
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/AS1T01_191T01_9000001536_10632cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10632cztM0_level2_quad_clean.evt
Size (bytes)1,611,653,760274,253,760
Size1.5 GB 261.5 MB
Events in quadrant A8,862,0051,806,528
Events in quadrant B11,246,7301,790,261
Events in quadrant C9,006,9021,807,573
Events in quadrant D18,485,3391,665,249

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03660
B03660
C03660
D03660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0377224
B0446743
C0389943
D0675583

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A179482071.153332%
B179488394.674616%
C179483541.972365%
D179486933.861154%

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 19698 17951 5 5 0.03% 0.03%
B 19698 17951 407 407 2.07% 2.27%
C 19698 17951 189 189 0.96% 1.05%
D 19698 17951 333 333 1.69% 1.86%

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 13 251 490096 1096.69 2143 2103 445.0
A 1 162 63832 138.73 2143 2103 445.0
A 1 178 22556 45.96 2143 2103 445.0
B 4 239 2487025 6115.11 2115 2068 406.4
B 0 219 144515 350.54 2115 2068 406.4
B 0 214 130421 315.86 2115 2068 406.4
C 4 254 894029 1853.54 2071 2094 481.2
C 14 234 18176 33.42 2071 2094 481.2
C 13 61 15320 27.49 2071 2094 481.2
D 1 20 7170608 14316.94 2043 1992 500.7
D 1 52 1238080 2468.68 2043 1992 500.7
D 2 16 1000803 1994.79 2043 1992 500.7

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