ASTROSAT CZTI

Data Quality Report

Orbit 24592

Creation date: 2024-06-27T19:07:38.869491
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/AS1T03_188T01_9000003612_24592cztM0_level2.evt modeM0/AS1T03_188T01_9000003612_24592cztM0_level2_quad_clean.evt
Size (bytes)624,211,20074,105,280
Size595.3 MB 70.7 MB
Events in quadrant A3,489,967470,341
Events in quadrant B3,601,081475,816
Events in quadrant C6,021,525435,532
Events in quadrant D5,373,670430,815

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143751
B0146781
C0219937
D0202151

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6184891.439198%
B61851061.713824%
C6184155325.113195%
D61842053.315006%

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 7529 6185 0 0 0.00% 0.00%
B 7530 6185 1 1 0.01% 0.02%
C 7529 6185 1132 1132 15.04% 18.30%
D 7529 6185 93 93 1.24% 1.50%

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 10415 53.91 903 890 176.7
A 0 226 7905 39.7 903 890 176.7
A 10 255 7456 37.16 903 890 176.7
B 0 190 53797 326.6 893 878 162.0
B 3 64 49668 301.12 893 878 162.0
B 12 111 18206 106.94 893 878 162.0
C 7 247 2885311 16550.13 765 772 174.3
C 14 238 126402 720.81 765 772 174.3
C 2 16 9512 50.15 765 772 174.3
D 8 195 1629546 8175.21 850 828 199.2
D 1 52 509608 2553.78 850 828 199.2
D 2 234 27604 134.4 850 828 199.2

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