ASTROSAT CZTI

Data Quality Report

Orbit 28384

Creation date: 2024-06-27T19:51:12.805872
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/AS1A10_045T05_9000004086_28384cztM0_level2.evt modeM0/AS1A10_045T05_9000004086_28384cztM0_level2_quad_clean.evt
Size (bytes)491,872,32073,990,080
Size469.1 MB 70.6 MB
Events in quadrant A3,230,092459,919
Events in quadrant B3,357,585471,765
Events in quadrant C3,307,831457,268
Events in quadrant D4,603,515442,121

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134600
B0137880
C0137430
D0177070

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5865821.398124%
B5865731.244672%
C58661272.165019%
D58653395.780051%

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 7170 5866 16 16 0.22% 0.27%
B 7170 5866 1 1 0.01% 0.02%
C 7171 5867 1 1 0.01% 0.02%
D 7170 5866 213 213 2.97% 3.63%

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 15 174 66042 401.35 819 805 162.5
A 13 254 9202 51.66 819 805 162.5
A 3 137 7465 40.97 819 805 162.5
B 10 245 98935 640.4 820 800 153.2
B 0 230 50186 322.27 820 800 153.2
B 12 111 17781 110.81 820 800 153.2
C 14 238 131632 703.22 807 815 186.0
C 7 220 25723 133.9 807 815 186.0
C 9 221 6101 28.42 807 815 186.0
D 1 52 750922 3989.44 796 778 188.0
D 8 195 748103 3974.44 796 778 188.0
D 7 238 54271 284.49 796 778 188.0

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