ASTROSAT CZTI

Data Quality Report

Orbit 29392

Creation date: 2024-06-27T20:03:29.323066
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_101T19_9000004228_29392cztM0_level2.evt modeM0/AS1A10_101T19_9000004228_29392cztM0_level2_quad_clean.evt
Size (bytes)254,931,84016,441,920
Size243.1 MB 15.7 MB
Events in quadrant A1,740,45795,855
Events in quadrant B930,464102,598
Events in quadrant C987,714100,103
Events in quadrant D3,941,17669,985

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063400
B038000
C039320
D0129020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A17551568.888889%
B1756100.569476%
C1756794.498861%
D1756145983.086560%

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 1755 1755 115 115 6.55% 6.55%
B 1756 1756 1 1 0.06% 0.06%
C 1756 1756 0 0 0.00% 0.00%
D 1756 1756 1206 1206 68.68% 68.68%

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 1 113 884517 18648.92 221 215 47.4
A 13 254 3930 78.35 221 215 47.4
A 3 137 2233 42.56 221 215 47.4
B 10 245 31660 690.99 224 219 45.5
B 0 190 9079 194.72 224 219 45.5
B 5 255 6507 138.19 224 219 45.5
C 3 233 54195 1030.64 213 213 52.4
C 14 238 44391 843.46 213 213 52.4
C 10 9 38175 724.78 213 213 52.4
D 8 195 2172229 55708.7 156 152 39.0
D 1 52 999308 25626.02 156 152 39.0
D 2 250 71580 1831.96 156 152 39.0

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