ASTROSAT CZTI

Data Quality Report

Orbit 28358

Creation date: 2024-06-27T19:50:54.471324
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_101T02_9000004084_28358cztM0_level2.evt modeM0/AS1A10_101T02_9000004084_28358cztM0_level2_quad_clean.evt
Size (bytes)495,112,32079,954,560
Size472.2 MB 76.3 MB
Events in quadrant A3,240,730503,582
Events in quadrant B3,420,662519,721
Events in quadrant C3,597,666477,048
Events in quadrant D4,288,581461,538

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135960
B0140150
C0145330
D0170910

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6581140.212734%
B6581270.410272%
C65811852.811123%
D65811352.051360%

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 7826 6582 0 0 0.00% 0.00%
B 7826 6582 1 1 0.01% 0.02%
C 7826 6582 97 97 1.24% 1.47%
D 7826 6582 101 101 1.29% 1.53%

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 13 254 11081 60.51 840 823 169.5
A 3 137 7983 42.23 840 823 169.5
A 0 226 7096 37.0 840 823 169.5
B 10 246 42804 262.85 847 827 159.7
B 10 245 23321 140.85 847 827 159.7
B 0 230 22742 137.23 847 827 159.7
C 3 233 311164 1635.27 809 815 189.8
C 14 238 130798 684.9 809 815 189.8
C 13 61 5517 24.78 809 815 189.8
D 8 195 599285 3093.22 807 784 193.5
D 1 52 513280 2648.72 807 784 193.5
D 2 250 81124 415.22 807 784 193.5

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