ASTROSAT CZTI

Data Quality Report

Orbit 14072

Creation date: 2024-06-27T16:50:01.025767
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/AS1G08_055T01_9000002076_14072cztM0_level2.evt modeM0/AS1G08_055T01_9000002076_14072cztM0_level2_quad_clean.evt
Size (bytes)625,481,280120,288,960
Size596.5 MB 114.7 MB
Events in quadrant A6,043,070775,263
Events in quadrant B3,817,111825,654
Events in quadrant C3,268,960791,266
Events in quadrant D5,331,548754,711

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228793
B0160242
C0146182
D0208732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A712478210.976979%
B7124961.347558%
C7124130.182482%
D71242553.579450%

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 7695 7126 642 642 8.34% 9.01%
B 7695 7126 22 22 0.29% 0.31%
C 7695 7126 4 4 0.05% 0.06%
D 7695 7126 128 128 1.66% 1.80%

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 15 222 2770732 16746.25 817 798 165.4
A 12 189 64749 386.63 817 798 165.4
A 9 143 38186 226.04 817 798 165.4
B 10 16 124276 774.71 849 831 159.3
B 0 189 81891 508.71 849 831 159.3
B 3 209 61514 380.83 849 831 159.3
C 3 233 74611 393.79 813 816 187.4
C 14 234 12033 59.85 813 816 187.4
C 0 207 11778 58.49 813 816 187.4
D 12 110 1267617 6008.36 794 776 210.8
D 1 52 311566 1474.01 794 776 210.8
D 10 172 183645 867.31 794 776 210.8

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