ASTROSAT CZTI

Data Quality Report

Orbit 14059

Creation date: 2024-06-27T16:49:48.442323
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_162T01_9000002074_14059cztM0_level2.evt modeM0/AS1A04_162T01_9000002074_14059cztM0_level2_quad_clean.evt
Size (bytes)876,234,240140,287,680
Size835.6 MB 133.8 MB
Events in quadrant A4,141,3591,004,288
Events in quadrant B4,114,1211,017,907
Events in quadrant C3,707,196978,016
Events in quadrant D14,026,420684,170

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0179604
B0177252
C0166162
D0473082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81011862.296013%
B81011692.086162%
C8101991.222071%
D8101432053.326750%

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 8703 8106 51 51 0.59% 0.63%
B 8703 8106 11 11 0.13% 0.14%
C 8703 8106 5 5 0.06% 0.06%
D 8703 8106 3890 3890 44.70% 47.99%

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 9 143 339990 1776.43 939 919 190.9
A 12 189 94644 491.04 939 919 190.9
A 15 69 33753 172.02 939 919 190.9
B 0 189 118072 655.26 945 919 178.8
B 0 219 71156 392.85 945 919 178.8
B 4 80 62305 343.34 945 919 178.8
C 3 233 129010 613.26 907 910 208.9
C 0 207 24183 111.42 907 910 208.9
C 12 4 10744 47.08 907 910 208.9
D 1 52 9622625 50907.61 692 675 189.0
D 8 195 711469 3760.65 692 675 189.0
D 12 110 544846 2879.09 692 675 189.0

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