ASTROSAT CZTI

Data Quality Report

Orbit 04333

Creation date: 2024-06-27T14:40:31.248718
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/AS1G05_219T01_9000000540_04333cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04333cztM0_level2_quad_clean.evt
Size (bytes)1,379,448,000120,058,560
Size1.3 GB 114.5 MB
Events in quadrant A5,719,391794,344
Events in quadrant B22,933,790442,277
Events in quadrant C5,560,053776,628
Events in quadrant D6,713,329748,658

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02604
B02600
C02600
D02600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02607595
B0778691030
C025907105
D029603186

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A12628690.546405%
B12519653452.192667%
C12624200.158428%
D126011120.888818%

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 13203 12676 5 5 0.04% 0.04%
B 13203 12594 6079 6079 46.04% 48.27%
C 13203 12675 0 0 0.00% 0.00%
D 13203 12672 74 74 0.56% 0.58%

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 13 251 90648 301.63 1444 1412 295.8
A 15 234 31594 102.02 1444 1412 295.8
A 8 15 31575 101.95 1444 1412 295.8
B 3 0 18372136 89171.97 1078 1054 206.0
B 14 167 127590 614.2 1078 1054 206.0
B 4 48 110473 531.11 1078 1054 206.0
C 9 247 47280 141.15 1391 1397 325.1
C 9 16 36426 107.76 1391 1397 325.1
C 8 128 17122 48.38 1391 1397 325.1
D 13 53 809751 2374.32 1384 1340 340.5
D 2 136 182589 532.33 1384 1340 340.5
D 2 37 121576 353.14 1384 1340 340.5

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