ASTROSAT CZTI

Data Quality Report

Orbit 24103

Creation date: 2024-06-27T19:02:12.628776
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_012T04_9000003564_24103cztM0_level2.evt modeM0/AS1C05_012T04_9000003564_24103cztM0_level2_quad_clean.evt
Size (bytes)499,449,600131,621,760
Size476.3 MB 125.5 MB
Events in quadrant A3,193,140904,658
Events in quadrant B3,215,001909,870
Events in quadrant C3,465,648864,821
Events in quadrant D4,795,921838,943

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137631
B0137861
C0144441
D0186381

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67201061.577381%
B67211081.606904%
C67211682.499628%
D67212623.898229%

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 7476 6720 4 4 0.05% 0.06%
B 7477 6721 0 0 0.00% 0.00%
C 7477 6721 32 32 0.43% 0.48%
D 7477 6721 165 165 2.21% 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 6 16 30229 179.45 819 802 164.0
A 13 254 11245 63.68 819 802 164.0
A 0 226 7263 39.4 819 802 164.0
B 12 111 17835 112.07 810 792 152.1
B 0 229 17395 109.18 810 792 152.1
B 11 111 16006 100.04 810 792 152.1
C 0 239 274382 1517.72 780 784 180.3
C 14 238 125000 689.06 780 784 180.3
C 7 247 25531 137.28 780 784 180.3
D 8 195 862020 4535.81 790 767 189.9
D 1 52 504403 2652.41 790 767 189.9
D 12 233 258230 1355.94 790 767 189.9

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