ASTROSAT CZTI

Data Quality Report

Orbit 24432

Creation date: 2024-06-27T19:05:58.068002
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/AS1T03_183T01_9000003606_24432cztM0_level2.evt modeM0/AS1T03_183T01_9000003606_24432cztM0_level2_quad_clean.evt
Size (bytes)498,919,680113,748,480
Size475.8 MB 108.5 MB
Events in quadrant A3,102,580777,005
Events in quadrant B3,093,834806,386
Events in quadrant C3,051,330740,203
Events in quadrant D5,447,895695,016

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132611
B0130581
C0129041
D0204411

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6109500.818465%
B6110520.851064%
C6110791.292962%
D61102624.288052%

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 7384 6110 5 5 0.07% 0.08%
B 7385 6111 1 1 0.01% 0.02%
C 7385 6111 2 2 0.03% 0.03%
D 7385 6111 264 264 3.57% 4.32%

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 4 2 98557 630.38 779 766 155.1
A 13 254 9491 56.24 779 766 155.1
A 0 226 6768 38.69 779 766 155.1
B 3 64 20784 137.0 784 767 146.1
B 12 111 17154 112.15 784 767 146.1
B 11 111 14651 95.02 784 767 146.1
C 14 238 121114 705.3 738 746 170.7
C 2 16 47623 274.68 738 746 170.7
C 13 61 5065 25.31 738 746 170.7
D 8 195 1744597 9857.89 732 710 176.9
D 12 218 758532 4283.84 732 710 176.9
D 1 52 76167 426.55 732 710 176.9

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