ASTROSAT CZTI

Data Quality Report

Orbit 34086

Creation date: 2024-06-27T20:56:22.011848
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/AS1A05_208T01_9000004870_34086cztM0_level2.evt modeM0/AS1A05_208T01_9000004870_34086cztM0_level2_quad_clean.evt
Size (bytes)574,882,56090,673,920
Size548.3 MB 86.5 MB
Events in quadrant A2,932,740594,810
Events in quadrant B5,790,220577,901
Events in quadrant C3,492,843588,238
Events in quadrant D4,773,221550,176

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126543
B0215702
C0140282
D0183622

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A621880.128659%
B621862710.083628%
C6218711.141846%
D62182373.811515%

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 9565 6220 0 0 0.00% 0.00%
B 9565 6219 396 396 4.14% 6.37%
C 9565 6220 59 59 0.62% 0.95%
D 9565 6220 241 241 2.52% 3.87%

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 10 83 19725 126.39 750 735 150.2
A 13 254 11052 68.67 750 735 150.2
A 13 6 10764 66.75 750 735 150.2
B 5 31 1448783 10218.39 729 709 141.7
B 5 172 660248 4654.06 729 709 141.7
B 5 15 493988 3480.84 729 709 141.7
C 0 10 292267 1735.53 729 738 168.0
C 15 214 269243 1598.47 729 738 168.0
C 3 233 33812 196.9 729 738 168.0
D 8 195 920854 5248.2 719 698 175.3
D 2 250 395727 2253.09 719 698 175.3
D 2 120 161672 918.13 719 698 175.3

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