ASTROSAT CZTI

Data Quality Report

Orbit 47469

Creation date: 2024-07-09T10:29:07.624060
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/AS1A13_089T01_9000006330_47469cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47469cztM0_level2_quad_clean.evt
Size (bytes)1,577,053,440286,220,160
Size1.5 GB 273.0 MB
Events in quadrant A20,866,9241,913,013
Events in quadrant B11,333,0381,976,963
Events in quadrant C8,673,1621,926,600
Events in quadrant D16,028,6011,531,595

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03860
B03860
C03860
D03860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0766583
B0464883
C0397143
D0607473

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1911711275.895276%
B1911710005.230946%
C191183902.039962%
D19118248512.998222%

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 20352 19120 150 150 0.74% 0.78%
B 20352 19120 285 285 1.40% 1.49%
C 20353 19121 19 19 0.09% 0.10%
D 20353 19121 1817 1817 8.93% 9.50%

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 10364645 23257.58 2135 2083 445.6
A 9 191 1168999 2619.01 2135 2083 445.6
A 14 235 931141 2085.16 2135 2083 445.6
B 5 32 2143182 5110.81 2132 2065 418.9
B 0 198 322668 765.27 2132 2065 418.9
B 0 190 227891 539.04 2132 2065 418.9
C 3 233 150281 293.78 2135 2142 504.3
C 0 207 145440 284.18 2135 2142 504.3
C 14 254 28067 51.41 2135 2142 504.3
D 2 165 5178105 10189.56 2028 1962 508.0
D 6 112 1539171 3026.09 2028 1962 508.0
D 2 249 680764 1336.26 2028 1962 508.0

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