ASTROSAT CZTI

Data Quality Report

Orbit 26212

Creation date: 2024-06-27T19:26:09.967964
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/AS1C05_019T04_9000003788_26212cztM0_level2.evt modeM0/AS1C05_019T04_9000003788_26212cztM0_level2_quad_clean.evt
Size (bytes)463,700,160138,597,120
Size442.2 MB 132.2 MB
Events in quadrant A3,410,121938,960
Events in quadrant B3,368,740971,348
Events in quadrant C3,287,224925,634
Events in quadrant D3,529,502902,753

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143940
B0142160
C0139440
D0149140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6587881.335965%
B6586741.123596%
C6586821.245065%
D6586520.789554%

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 7832 6588 42 42 0.54% 0.64%
B 7831 6587 15 15 0.19% 0.23%
C 7831 6587 0 0 0.00% 0.00%
D 7831 6587 26 26 0.33% 0.39%

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 0 13 242707 1495.2 818 802 161.8
A 13 254 11649 67.04 818 802 161.8
A 3 137 7004 38.33 818 802 161.8
B 5 172 73557 472.87 825 804 153.9
B 0 230 47025 300.42 825 804 153.9
B 0 190 25757 162.19 825 804 153.9
C 14 238 130183 701.58 795 802 184.4
C 3 233 35255 186.83 795 802 184.4
C 0 10 15464 79.51 795 802 184.4
D 1 52 493998 2606.39 792 776 189.2
D 2 234 29324 150.86 792 776 189.2
D 10 103 11997 59.3 792 776 189.2

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