ASTROSAT CZTI

Data Quality Report

Orbit 43845

Creation date: 2024-06-27T22:56:29.017006
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_018T01_9000005906_43845cztM0_level2.fits modeM0/AS1A13_018T01_9000005906_43845cztM0_level2_quad_clean.evt
Size (bytes)1,192,461,120174,055,680
Size1.1 GB 166.0 MB
Events in quadrant A8,637,0181,197,050
Events in quadrant B6,184,9231,275,143
Events in quadrant C18,245,309965,846
Events in quadrant D10,167,9131,019,281

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0334087
B0262685
C0624152
D0383577

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02360
B02360
C02360
D02360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A117445834.964237%
B117441591.353883%
C11746305626.017368%
D11745129110.991911%

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 13066 11746 445 445 3.41% 3.79%
B 13066 11746 79 79 0.60% 0.67%
C 13066 11746 2746 2746 21.02% 23.38%
D 13066 11747 1230 1230 9.41% 10.47%

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 15 223 1897797 7181.28 1278 1253 264.1
A 10 83 1613756 6105.76 1278 1253 264.1
A 8 4 49907 184.23 1278 1253 264.1
B 5 235 252284 973.63 1294 1253 257.8
B 4 170 214992 828.99 1294 1253 257.8
B 0 200 170051 654.69 1294 1253 257.8
C 3 233 11429511 41176.64 1179 1186 277.5
C 0 239 1275453 4591.23 1179 1186 277.5
C 15 158 407840 1465.19 1179 1186 277.5
D 5 235 2738516 8768.05 1222 1183 312.2
D 12 2 494541 1580.29 1222 1183 312.2
D 4 221 418237 1335.88 1222 1183 312.2

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