ASTROSAT CZTI

Data Quality Report

Orbit 29648

Creation date: 2024-06-27T20:06:27.873165
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/AS1C05_019T01_9000004270_29648cztM0_level2.evt modeM0/AS1C05_019T01_9000004270_29648cztM0_level2_quad_clean.evt
Size (bytes)525,507,840115,669,440
Size501.2 MB 110.3 MB
Events in quadrant A3,248,363754,118
Events in quadrant B3,425,251778,719
Events in quadrant C3,669,141754,729
Events in quadrant D5,081,457712,375

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147161
B0150701
C0156711
D0200081

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7230380.525588%
B7230861.189488%
C72311562.157378%
D72312934.051998%

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 7785 7231 0 0 0.00% 0.00%
B 7785 7231 11 11 0.14% 0.15%
C 7786 7232 29 29 0.37% 0.40%
D 7786 7232 211 211 2.71% 2.92%

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 13 254 14078 78.38 841 821 169.1
A 3 137 8261 43.99 841 821 169.1
A 0 226 7019 36.64 841 821 169.1
B 0 189 66681 414.46 842 821 158.9
B 0 190 21132 127.82 842 821 158.9
B 12 111 20144 121.6 842 821 158.9
C 3 233 214461 1132.44 813 816 188.7
C 14 238 132536 698.19 813 816 188.7
C 10 22 113673 598.2 813 816 188.7
D 7 80 882701 4688.74 799 776 188.1
D 8 195 569379 3022.97 799 776 188.1
D 7 238 172511 913.03 799 776 188.1

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