ASTROSAT CZTI

Data Quality Report

Orbit 11044

Creation date: 2024-06-27T16:07:23.917528
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/AS1A04_113T02_9000001606_11044cztM0_level2.evt modeM0/AS1A04_113T02_9000001606_11044cztM0_level2_quad_clean.evt
Size (bytes)1,105,646,400119,675,520
Size1.0 GB 114.1 MB
Events in quadrant A12,794,784650,050
Events in quadrant B7,178,440743,492
Events in quadrant C5,459,444760,646
Events in quadrant D7,310,428707,812

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02260
B02260
C02260
D02260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0455843
B0281192
C0228622
D0288192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10992227220.669578%
B109925515.012737%
C109921101.000728%
D109923423.111354%

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 13617 10993 1759 1759 12.92% 16.00%
B 13617 10993 247 247 1.81% 2.25%
C 13617 10994 0 0 0.00% 0.00%
D 13617 10994 214 214 1.57% 1.95%

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 14 238 4130024 16144.06 1289 1266 255.7
A 8 5 3461103 13528.48 1289 1266 255.7
A 15 174 203000 788.81 1289 1266 255.7
B 4 239 1428767 5481.8 1403 1371 260.4
B 4 81 243770 930.91 1403 1371 260.4
B 0 187 38128 141.16 1403 1371 260.4
C 13 61 10280 28.09 1397 1409 315.8
C 12 4 8391 22.11 1397 1409 315.8
C 8 222 3934 8.0 1397 1409 315.8
D 11 129 575997 1798.98 1365 1332 319.4
D 8 195 358053 1116.71 1365 1332 319.4
D 14 34 277377 864.15 1365 1332 319.4

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