ASTROSAT CZTI

Data Quality Report

Orbit 04433

Creation date: 2024-06-27T14:41:57.371882
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_214T01_9000000552_04433cztM0_level2.evt modeM0/AS1G05_214T01_9000000552_04433cztM0_level2_quad_clean.evt
Size (bytes)534,591,36078,528,960
Size509.8 MB 74.9 MB
Events in quadrant A3,722,671463,165
Events in quadrant B4,044,715472,616
Events in quadrant C3,494,767471,144
Events in quadrant D4,416,843447,242

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162063
B0169072
C0155932
D0182622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75282583.427205%
B75282853.785866%
C75282052.723167%
D75284205.579171%

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 7628 7530 6 6 0.08% 0.08%
B 7628 7530 34 34 0.45% 0.45%
C 7628 7530 0 0 0.00% 0.00%
D 7628 7530 153 153 2.01% 2.03%

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 0 13 240234 1278.6 904 881 187.2
A 12 194 9138 44.11 904 881 187.2
A 0 226 8944 43.07 904 881 187.2
B 14 167 466618 2631.13 912 890 177.0
B 12 111 17089 91.52 912 890 177.0
B 0 228 13868 73.32 912 890 177.0
C 9 247 14449 64.9 888 891 208.9
C 13 61 7328 30.81 888 891 208.9
C 12 4 5022 19.78 888 891 208.9
D 12 233 764213 3310.71 858 839 230.6
D 2 63 144976 625.11 858 839 230.6
D 13 239 108255 465.86 858 839 230.6

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