ASTROSAT CZTI

Data Quality Report

Orbit 30211

Creation date: 2024-06-27T20:12:17.551307
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_071T15_9000004346_30211cztM0_level2.evt modeM0/AS1A10_071T15_9000004346_30211cztM0_level2_quad_clean.evt
Size (bytes)524,793,60076,752,000
Size500.5 MB 73.2 MB
Events in quadrant A3,217,634482,170
Events in quadrant B4,936,160490,156
Events in quadrant C3,234,969462,985
Events in quadrant D4,074,475445,589

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132402
B0191822
C0132832
D0161412

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6347300.472664%
B6347590.929573%
C6347590.929573%
D6347851.339215%

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 7597 6348 2 2 0.03% 0.03%
B 7597 6348 0 0 0.00% 0.00%
C 7597 6348 0 0 0.00% 0.00%
D 7597 6348 75 75 0.99% 1.18%

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 25730 150.43 827 812 165.6
A 13 254 11234 62.92 827 812 165.6
A 3 137 7946 43.07 827 812 165.6
B 6 159 1682096 10681.58 825 807 157.4
B 0 190 23774 145.91 825 807 157.4
B 12 111 19298 117.48 825 807 157.4
C 14 238 129531 697.43 788 796 184.6
C 3 233 15370 78.96 788 796 184.6
C 2 114 14737 75.53 788 796 184.6
D 1 52 406061 2179.35 780 763 186.0
D 7 223 311462 1670.67 780 763 186.0
D 8 195 244992 1313.26 780 763 186.0

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