ASTROSAT CZTI

Data Quality Report

Orbit 30546

Creation date: 2024-06-27T20:16:45.431057
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_053T17_9000004396_30546cztM0_level2.evt modeM0/AS1A10_053T17_9000004396_30546cztM0_level2_quad_clean.evt
Size (bytes)214,787,52015,543,360
Size204.8 MB 14.8 MB
Events in quadrant A1,180,82076,827
Events in quadrant B1,865,32676,077
Events in quadrant C1,279,52971,112
Events in quadrant D2,012,63071,499

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049991
B073731
C053181
D075451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2418190.785773%
B2418481.985112%
C2418994.094293%
D241831412.985939%

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 2417 2417 0 0 0.00% 0.00%
B 2417 2417 2 2 0.08% 0.08%
C 2417 2417 35 35 1.45% 1.45%
D 2417 2417 238 238 9.85% 9.85%

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 8 192 11860 184.3 303 296 62.7
A 13 254 4680 69.87 303 296 62.7
A 3 137 3029 43.56 303 296 62.7
B 6 159 656023 11057.83 297 289 59.3
B 5 172 21556 358.63 297 289 59.3
B 12 111 7064 114.25 297 289 59.3
C 0 10 132869 2027.95 274 275 65.4
C 14 238 54573 830.46 274 275 65.4
C 14 254 12915 193.32 274 275 65.4
D 7 238 703137 10373.06 275 267 67.8
D 8 195 113651 1673.34 275 267 67.8
D 1 52 68654 1009.27 275 267 67.8

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