ASTROSAT CZTI

Data Quality Report

Orbit 19469

Creation date: 2024-06-27T18:03:13.149152
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/AS1A05_229T02_9000002890_19469cztM0_level2.evt modeM0/AS1A05_229T02_9000002890_19469cztM0_level2_quad_clean.evt
Size (bytes)523,560,96066,600,000
Size499.3 MB 63.5 MB
Events in quadrant A3,448,709401,072
Events in quadrant B3,554,091402,151
Events in quadrant C3,762,359382,895
Events in quadrant D4,651,754378,746

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140771
B0144361
C0153211
D0181181

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64791261.944745%
B64801392.145062%
C64801592.453704%
D64793064.722951%

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 7729 6479 0 0 0.00% 0.00%
B 7730 6480 3 3 0.04% 0.05%
C 7730 6480 5 5 0.06% 0.08%
D 7728 6478 159 159 2.06% 2.45%

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 11 29 9596 49.49 890 877 176.2
A 15 191 8141 41.23 890 877 176.2
A 0 226 7827 39.45 890 877 176.2
B 4 216 30226 177.79 877 857 165.2
B 0 230 20443 118.57 877 857 165.2
B 12 111 18611 107.48 877 857 165.2
C 3 233 195212 1016.11 836 844 191.3
C 9 221 135999 706.56 836 844 191.3
C 14 238 133064 691.21 836 844 191.3
D 12 225 462891 2244.1 851 828 205.9
D 7 238 363548 1761.62 851 828 205.9
D 1 52 278754 1349.8 851 828 205.9

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